Added loadingTip property to levels, set them up on the LevelLoadingView, and got them prepped for i18n-ing.

app/schemas/models/level.coffee

@@ -224,6 +224,7 @@ LevelSchema = c.object {
 c.extendNamedProperties LevelSchema  # let's have the name be the first property
 _.extend LevelSchema.properties,
   description: {title: 'Description', description: 'A short explanation of what this level is about.', type: 'string', maxLength: 65536, format: 'markdown'}
+  loadingTip: { type: 'string', title: 'Loading Tip', description: 'What to show for this level while it\'s loading.' }
   documentation: c.object {title: 'Documentation', description: 'Documentation articles relating to this level.', required: ['specificArticles', 'generalArticles'], 'default': {specificArticles: [], generalArticles: []}},
     specificArticles: c.array {title: 'Specific Articles', description: 'Specific documentation articles that live only in this level.', uniqueItems: true }, SpecificArticleSchema
     generalArticles: c.array {title: 'General Articles', description: 'General documentation articles that can be linked from multiple levels.', uniqueItems: true}, GeneralArticleSchema
@@ -243,7 +244,7 @@ _.extend LevelSchema.properties,
     body: {type: 'string', format: 'markdown', title: 'Body Text', description: 'Inserted into the Victory Modal once this level is complete. Tell the player they did a good job and what they accomplished!'},
     i18n: {type: 'object', format: 'i18n', props: ['body'], description: 'Help translate this victory message'}
   }
-  i18n: {type: 'object', format: 'i18n', props: ['name', 'description'], description: 'Help translate this level'}
+  i18n: {type: 'object', format: 'i18n', props: ['name', 'description', 'loadingTip'], description: 'Help translate this level'}
   icon: {type: 'string', format: 'image-file', title: 'Icon'}
   banner: {type: 'string', format: 'image-file', title: 'Banner'}
   goals: c.array {title: 'Goals', description: 'An array of goals which are visible to the player and can trigger scripts.'}, GoalSchema

app/views/editor/level/settings/SettingsTabView.coffee

@@ -13,7 +13,7 @@ module.exports = class SettingsTabView extends CocoView
   # not thangs or scripts or the backend stuff
   editableSettings: [
     'name', 'description', 'documentation', 'nextLevel', 'background', 'victory', 'i18n', 'icon', 'goals',
-    'type', 'terrain', 'showsGuide', 'banner', 'employerDescription'
+    'type', 'terrain', 'showsGuide', 'banner', 'employerDescription', 'loadingTip'
   ]
 
   subscriptions:

app/views/i18n/I18NEditLevelView.coffee

@@ -15,6 +15,8 @@ module.exports = class I18NEditLevelView extends I18NEditModelView
         @wrapRow "Level name", ['name'], name, i18n[lang]?.name, []
       if description = @model.get('description')
         @wrapRow "Level description", ['description'], description, i18n[lang]?.description, []
+      if loadingTip = @model.get('loadingTip')
+        @wrapRow "Loading tip", ['loadingTip'], loadingTip, i18n[lang]?.loadingTip, []
 
     # goals
     for goal, index in @model.get('goals') ? []

app/views/play/level/LevelLoadingView.coffee

@@ -18,7 +18,7 @@ module.exports = class LevelLoadingView extends CocoView
     @$el.find('.tip.rare').remove() if _.random(1, 10) < 9
     tips = @$el.find('.tip').addClass('to-remove')
     tip = _.sample(tips)
-    $(tip).removeClass('to-remove')
+    $(tip).removeClass('to-remove').addClass('secret')
     @$el.find('.to-remove').remove()
     @onLevelLoaded level: @options.level if @options.level?.get('goals')  # If Level was already loaded.
 
@@ -47,6 +47,11 @@ module.exports = class LevelLoadingView extends CocoView
       goalContainer.removeClass('secret')
       if goalCount is 1
         goalContainer.find('.panel-heading').text $.i18n.t 'play_level.goal'  # Not plural
+    tip = @$el.find('.tip')
+    if @level.get('loadingTip')
+      loadingTip = utils.i18n @level.attributes, 'loadingTip'
+      tip.text(loadingTip)
+    tip.removeClass('secret')
 
   showReady: ->
     return if @shownReady
@@ -59,8 +64,6 @@ module.exports = class LevelLoadingView extends CocoView
       @startUnveiling()
       @unveil()
     else
-      ready = $.i18n.t('play_level.loading_ready', defaultValue: 'Ready!')
-      @$el.find('#tip-wrapper .tip').addClass('ready').text ready
       Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'level_loaded', volume: 0.75  # old: loading_ready
       @$el.find('.progress').addClass 'active progress-striped'
       @$el.find('.start-level-button').removeClass 'secret'

server/levels/level_handler.coffee

@@ -29,6 +29,7 @@ LevelHandler = class LevelHandler extends Handler
     'employerDescription'
     'terrain'
     'i18nCoverage'
+    'loadingTip'
   ]
 
   postEditableProperties: ['name']