diff --git a/ui/src/app/components/form-object/form-error.component.html b/ui/src/app/components/form-object/form-error.component.html
index 05a4bf84c..9de4228c9 100644
--- a/ui/src/app/components/form-object/form-error.component.html
+++ b/ui/src/app/components/form-object/form-error.component.html
@@ -17,8 +17,8 @@
     <p *ngIf="control.hasError('numberNotInRange')">
       Number not in range
     </p>
-    <p *ngIf="control.hasError('invalidNumber')">
-      Invalid Number
+    <p *ngIf="control.hasError('notNumber')">
+      {{ spec.name }} must be a number
     </p>
   </ng-container>
 
diff --git a/ui/src/app/components/form-object/form-object.component.html b/ui/src/app/components/form-object/form-object.component.html
index 689ddd9fe..314e4cf5f 100644
--- a/ui/src/app/components/form-object/form-object.component.html
+++ b/ui/src/app/components/form-object/form-object.component.html
@@ -24,25 +24,25 @@
         </h4>
         <!-- string -->
         <ion-item color="dark" *ngIf="spec.type === 'string'">
-          <ion-input [type]="spec.masked && !unmasked[entry.key] ? 'password' : 'text'" [placeholder]="'Enter ' + spec.name" [formControlName]="entry.key" (ionChange)="presentAlertChangeWarning(entry.key, spec)"></ion-input>
+          <ion-input [type]="spec.masked && !unmasked[entry.key] ? 'password' : 'text'" [placeholder]="'Enter ' + spec.name" [formControlName]="entry.key" (ionFocus)="presentAlertChangeWarning(key, spec)" (ionChange)="handleInputChange(spec)"></ion-input>
           <ion-button *ngIf="spec.masked" fill="clear" color="light" (click)="unmasked[entry.key] = !unmasked[entry.key]">
             <ion-icon slot="icon-only" [name]="unmasked[entry.key] ? 'eye-off-outline' : 'eye-outline'" size="small"></ion-icon>
           </ion-button>
         </ion-item>
         <!-- number -->
         <ion-item color="dark" *ngIf="spec.type === 'number'">
-          <ion-input type="tel" [placeholder]="'Enter ' + spec.name" [formControlName]="entry.key" (ionChange)="presentAlertChangeWarning(entry.key, spec)"></ion-input>
+          <ion-input type="tel" [placeholder]="'Enter ' + spec.name" [formControlName]="entry.key" (ionFocus)="presentAlertChangeWarning(key, spec)" (ionChange)="handleInputChange(spec)"></ion-input>
           <ion-note *ngIf="spec.units" slot="end" color="light" style="font-size: medium;">{{ spec.units }}</ion-note>
         </ion-item>
         <!-- boolean -->
         <ion-item color="dark" *ngIf="spec.type === 'boolean'">
           <ion-label>{{ spec.name }}</ion-label>
-          <ion-toggle style="--background: var(--ion-color-step-600);" slot="end" color="light" [formControlName]="entry.key" (ionChange)="presentAlertChangeWarning(entry.key, spec)"></ion-toggle>
+          <ion-toggle style="--background: var(--ion-color-step-600);" slot="end" color="light" [formControlName]="entry.key" (ionChange)="handleBooleanChange(entry.key, spec)"></ion-toggle>
         </ion-item>
         <!-- enum -->
         <ion-item color="dark" *ngIf="spec.type === 'enum'">
           <ion-label>{{ spec.name }}</ion-label>
-          <ion-select slot="end" placeholder="Select" [formControlName]="entry.key" [selectedText]="spec['value-names'][formGroup.get(entry.key).value]" (ionChange)="presentAlertChangeWarning(entry.key, spec)">
+          <ion-select [interfaceOptions]="{ message: getWarningText(spec['change-warning']) }" slot="end" placeholder="Select" [formControlName]="entry.key" [selectedText]="spec['value-names'][formGroup.get(entry.key).value]" (ionChange)="handleInputChange(entry.key, spec)">
             <ion-select-option *ngFor="let option of spec.values" [value]="option">
               {{ spec['value-names'][option] }}
             </ion-select-option>
@@ -134,6 +134,7 @@
                     [formGroup]="abstractControl"
                     [current]="current && current[entry.key] ? current[entry.key][i] : undefined"
                     [unionSpec]="spec.subtype === 'union' ? spec.spec : undefined"
+                    (onInputChange)="updateLabel(entry.key, i, spec.spec['display-as'])"
                   ></form-object>
                   <div style="text-align: right; padding-top: 12px;">
                     <ion-button fill="clear" (click)="presentAlertDelete(entry.key, i)" color="danger">
diff --git a/ui/src/app/components/form-object/form-object.component.ts b/ui/src/app/components/form-object/form-object.component.ts
index f613f78a5..b5877109d 100644
--- a/ui/src/app/components/form-object/form-object.component.ts
+++ b/ui/src/app/components/form-object/form-object.component.ts
@@ -1,7 +1,7 @@
-import { Component, Input, SimpleChange } from '@angular/core'
+import { Component, Input, Output, SimpleChange, EventEmitter } from '@angular/core'
 import { AbstractFormGroupDirective, FormArray, FormGroup } from '@angular/forms'
-import { AlertController, ModalController } from '@ionic/angular'
-import { ConfigSpec, ListValueSpecOf, ValueSpec, ValueSpecList, ValueSpecListOf, ValueSpecUnion } from 'src/app/pkg-config/config-types'
+import { AlertController, IonicSafeString, ModalController } from '@ionic/angular'
+import { ConfigSpec, ListValueSpecOf, ValueSpec, ValueSpecBoolean, ValueSpecList, ValueSpecListOf, ValueSpecNumber, ValueSpecString, ValueSpecUnion } from 'src/app/pkg-config/config-types'
 import { FormService } from 'src/app/services/form.service'
 import { Range } from 'src/app/pkg-config/config-utilities'
 import { EnumListPage } from 'src/app/modals/enum-list/enum-list.page'
@@ -19,6 +19,7 @@ export class FormObjectComponent {
   @Input() unionSpec: ValueSpecUnion
   @Input() current: { [key: string]: any }
   @Input() showEdited: boolean = false
+  @Output() onInputChange = new EventEmitter<void>()
   warningAck: { [key: string]: boolean } = { }
   unmasked: { [key: string]: boolean } = { }
   // @TODO for when we want to expand/collapse normal objects/union in addition to list ones
@@ -88,18 +89,16 @@ export class FormObjectComponent {
     const newItem = this.formService.getListItem(listSpec, val)
     newItem.markAllAsTouched()
     arr.insert(0, newItem)
-    console.log('new Item', newItem)
     if (['object', 'union'].includes(listSpec.subtype)) {
       const displayAs = (listSpec.spec as ListValueSpecOf<'object'>)['display-as']
-      this.objectListInfo[key].push({
+      this.objectListInfo[key].unshift({
         height: '0px',
         expanded: true,
         displayAs: displayAs ? Mustache.render(displayAs, newItem.value) : '',
       })
 
       pauseFor(200).then(() => {
-        const index = this.objectListInfo[key].length - 1
-        this.objectListInfo[key][index].height = this.getDocSize(key)
+        this.objectListInfo[key][0].height = this.getDocSize(key)
       })
     }
   }
@@ -107,7 +106,28 @@ export class FormObjectComponent {
   toggleExpand (key: string, i: number) {
     this.objectListInfo[key][i].expanded = !this.objectListInfo[key][i].expanded
     this.objectListInfo[key][i].height = this.objectListInfo[key][i].expanded ? this.getDocSize(key) : '0px'
+  }
 
+  updateLabel (key: string, i: number, displayAs: string) {
+    this.objectListInfo[key][i].displayAs = displayAs ? Mustache.render(displayAs, this.formGroup.get(key).value[i]) : ''
+  }
+
+  getWarningText (text: string): IonicSafeString {
+    return new IonicSafeString(`<ion-text color="warning">${text}</ion-text>`)
+  }
+
+  handleInputChange (spec: ValueSpec) {
+    if (['string', 'number'].includes(spec.type)) {
+      this.onInputChange.emit()
+    }
+  }
+
+  handleBooleanChange (key: string, spec: ValueSpecBoolean) {
+    if (spec['change-warning']) {
+      const current = this.formGroup.get(key).value
+      const cancelFn = () => this.formGroup.get(key).setValue(!current)
+      this.presentAlertChangeWarning(key, spec, undefined, cancelFn)
+    }
   }
 
   async presentModalEnumList (key: string, spec: ValueSpecListOf<'enum'>, current: string[]) {
@@ -129,7 +149,7 @@ export class FormObjectComponent {
     await modal.present()
   }
 
-  async presentAlertChangeWarning (key: string, spec: ValueSpec) {
+  async presentAlertChangeWarning (key: string, spec: ValueSpec, okFn: Function = () => { }, cancelFn: Function = () => { }) {
     if (!spec['change-warning'] || this.warningAck[key]) return
     this.warningAck[key] = true
 
@@ -137,7 +157,20 @@ export class FormObjectComponent {
       header: 'Warning',
       subHeader: `Editing ${spec.name} has consequences:`,
       message: spec['change-warning'],
-      buttons: ['Ok'],
+      buttons: [
+        {
+          text: 'Cancel',
+          handler: () => {
+            cancelFn()
+          },
+        },
+        {
+          text: 'Proceed',
+          handler: () => {
+            okFn()
+          },
+        },
+      ],
     })
     await alert.present()
   }
diff --git a/ui/src/app/services/api/api.fixures.ts b/ui/src/app/services/api/api.fixures.ts
index c5db94810..242b4d6aa 100644
--- a/ui/src/app/services/api/api.fixures.ts
+++ b/ui/src/app/services/api/api.fixures.ts
@@ -1102,7 +1102,7 @@ export module Mock {
         },
         'default': 'null',
         'description': 'This is not even real.',
-        'change-warning': 'Be careful chnaging this!',
+        'change-warning': 'Be careful changing this!',
         'values': [
           'null',
           'option1',
diff --git a/ui/src/app/services/form.service.ts b/ui/src/app/services/form.service.ts
index 4b5146a4b..9fe2d458c 100644
--- a/ui/src/app/services/form.service.ts
+++ b/ui/src/app/services/form.service.ts
@@ -153,6 +153,7 @@ function isFullUnion (spec: ValueSpecUnion | ListValueSpecUnion): spec is ValueS
 
 export function numberInRange (stringRange: string): ValidatorFn {
   return (control: AbstractControl): ValidationErrors | null => {
+    if (!control.value) return null
     try {
       Range.from(stringRange).checkIncludes(control.value)
       return null
@@ -164,15 +165,15 @@ export function numberInRange (stringRange: string): ValidatorFn {
 
 export function isNumber (): ValidatorFn {
   return (control: AbstractControl): ValidationErrors | null => {
-    return control.value == Number(control.value) ?
+    return !control.value || control.value == Number(control.value) ?
       null :
-      { invalidNumber: { value: control.value } }
+      { notNumber: { value: control.value } }
   }
 }
 
 export function isInteger (): ValidatorFn {
   return (control: AbstractControl): ValidationErrors | null => {
-    return control.value == Math.trunc(control.value) ?
+    return !control.value || control.value == Math.trunc(control.value) ?
       null :
       { numberNotInteger: { value: control.value } }
   }