diff --git a/awx/ui/static/js/forms/Projects.js b/awx/ui/static/js/forms/Projects.js
index 28f3510a98..462526ec64 100644
--- a/awx/ui/static/js/forms/Projects.js
+++ b/awx/ui/static/js/forms/Projects.js
@@ -218,13 +218,13 @@ angular.module('ProjectFormDefinition', [])
                 "default": '0',
                 addRequired: false,
                 editRequired: false,
-                awPopOver: '<p>Time in seconds to consider a project update current. During job runs and callbacks the task system will ' +
-                    'evaluate the timestamp of the latest project update. If it is older than Cache Timeout, the project update is not current, ' +
-                    'and a new update will be performed.',
+                awPopOver: '<p>Time in seconds to consider a project to be current. During job runs and callbacks the task system will ' +
+                    'evaluate the timestamp of the latest project update. If it is older than Cache Timeout, it is not considered current, ' +
+                    'and a new project update will be performed.</p>',
                 dataTitle: 'Cache Timeout',
                 dataPlacement: 'right',
                 dataContainer: "body"
-            },
+            }
         },
 
         buttons: {
diff --git a/awx/ui/static/js/forms/Source.js b/awx/ui/static/js/forms/Source.js
index 0906f545c1..716d66db71 100644
--- a/awx/ui/static/js/forms/Source.js
+++ b/awx/ui/static/js/forms/Source.js
@@ -128,6 +128,24 @@ angular.module('SourceFormDefinition', [])
                     dataPlacement: 'right',
                     labelClass: 'checkbox-options'
                 }]
+            },
+            update_cache_timeout: {
+                label: 'Cache Timeout',
+                id: 'source-cache-timeout',
+                type: 'number',
+                integer: true,
+                min: 0,
+                ngShow: "update_on_launch",
+                spinner: true,
+                "default": '0',
+                addRequired: false,
+                editRequired: false,
+                awPopOver: '<p>Time in seconds to consider an inventory sync to be current. During job runs and callbacks the task system will ' +
+                    'evaluate the timestamp of the latest sync. If it is older than Cache Timeout, it is not considered current, ' +
+                    'and a new inventory sync will be performed.</p>',
+                dataTitle: 'Cache Timeout',
+                dataPlacement: 'right',
+                dataContainer: "body"
             }
         },
 
diff --git a/awx/ui/static/js/helpers/Groups.js b/awx/ui/static/js/helpers/Groups.js
index 05d58c2d20..ddb4f31b66 100644
--- a/awx/ui/static/js/helpers/Groups.js
+++ b/awx/ui/static/js/helpers/Groups.js
@@ -202,6 +202,7 @@ angular.module('GroupsHelper', ['RestServices', 'Utilities', 'ListGenerator', 'G
                         id: 'all',
                         text: 'All'
                     }]);
+                    $('#source_form').removeClass('squeeze');
                 } else if (scope.source.value === 'ec2') {
                     scope.source_region_choices = scope.ec2_regions;
                     //$('#s2id_group_source_regions').select2('data', []);
@@ -209,6 +210,7 @@ angular.module('GroupsHelper', ['RestServices', 'Utilities', 'ListGenerator', 'G
                         id: 'all',
                         text: 'All'
                     }]);
+                    $('#source_form').addClass('squeeze');
                 }
                 if (scope.source.value === 'rax' || scope.source.value === 'ec2') {
                     kind = (scope.source.value === 'rax') ? 'rax' : 'aws';
@@ -650,15 +652,15 @@ function(SchedulerInit, Rest, Wait, SetSchedulesInnerDialogSize) {
             if (ww > 1199) {
                 // desktop
                 x = 675;
-                y = (750 > wh) ? wh - 20 : 750;
+                y = (780 > wh) ? wh - 15 : 780;
                 maxrows = 18;
             } else if (ww <= 1199 && ww >= 768) {
                 x = 550;
-                y = (620 > wh) ? wh - 15 : 620;
+                y = (770 > wh) ? wh - 15 : 770;
                 maxrows = 12;
             } else {
                 x = (ww - 20);
-                y = (500 > wh) ? wh : 500;
+                y = (770 > wh) ? wh - 15 : 770;
                 maxrows = 10;
             }
 
@@ -843,7 +845,7 @@ function(SchedulerInit, Rest, Wait, SetSchedulesInnerDialogSize) {
                                     // Parse source_vars, converting to YAML.  
                                     sources_scope.source_vars = ParseVariableString(data.source_vars);
                                     master.source_vars = sources_scope.variables;
-                                } else if (data[fld]) {
+                                } else if (data[fld] !== undefined) {
                                     sources_scope[fld] = data[fld];
                                     master[fld] = sources_scope[fld];
                                 }
@@ -1056,7 +1058,8 @@ function(SchedulerInit, Rest, Wait, SetSchedulesInnerDialogSize) {
                         credential: sources_scope.credential,
                         overwrite: sources_scope.overwrite,
                         overwrite_vars: sources_scope.overwrite_vars,
-                        update_on_launch: sources_scope.update_on_launch
+                        update_on_launch: sources_scope.update_on_launch,
+                        update_cache_timeout: sources_scope.update_cache_timeout
                     };
 
                 // Create a string out of selected list of regions
diff --git a/awx/ui/static/less/ansible-ui.less b/awx/ui/static/less/ansible-ui.less
index b1ba03e777..dcaa18a9c3 100644
--- a/awx/ui/static/less/ansible-ui.less
+++ b/awx/ui/static/less/ansible-ui.less
@@ -1306,6 +1306,10 @@ input[type="checkbox"].checkbox-no-label {
       text-overflow: clip;*/
   }
 
+// Inventory edit dialog, source form, ec2
+#source_form.squeeze .form-group {
+    margin-bottom: 10px;
+}
 
 .disabled {
   color: @grey;