diff --git a/CHANGELOG.md b/CHANGELOG.md
index 833ddb9b..c07929cc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 ### 1.7.4 (20638, 2022-07-07)
 - Fixed the trophies list showing an incorrect total (Thanks itsre3!)
 - ba.app.meta.metascan is now ba.app.meta.scanresults
+- Cleaned up co-op ui code a bit
+- Added a utility function to add custom co-op games in the practice section: `ba.app.add_coop_practice_level`. Also added new workspace template script which uses it to define a new co-op game type.
 
 ### 1.7.3 (20634, 2022-07-06)
 - Fixed an issue with King of the Hill flag regions not working when players entered them (Thanks itsre3!)
diff --git a/assets/src/ba_data/python/ba/_app.py b/assets/src/ba_data/python/ba/_app.py
index 97cfbdcc..1db3c47c 100644
--- a/assets/src/ba_data/python/ba/_app.py
+++ b/assets/src/ba_data/python/ba/_app.py
@@ -29,6 +29,7 @@ if TYPE_CHECKING:
     from ba._cloud import CloudSubsystem
     from bastd.actor import spazappearance
     from ba._accountv2 import AccountV2Subsystem
+    from ba._level import Level
 
 
 class App:
@@ -274,6 +275,7 @@ class App:
 
         # Co-op Campaigns.
         self.campaigns: dict[str, ba.Campaign] = {}
+        self.custom_coop_practice_games: list[str] = []
 
         # Server Mode.
         self.server: ba.ServerController | None = None
@@ -527,6 +529,15 @@ class App:
                     # FIXME: This should not be an actor attr.
                     activity.paused_text = None
 
+    def add_coop_practice_level(self, level: Level) -> None:
+        """Adds an individual level to the 'practice' section in Co-op."""
+
+        # Assign this level to our catch-all campaign.
+        self.campaigns['Challenges'].addlevel(level)
+
+        # Make note to add it to our challenges UI.
+        self.custom_coop_practice_games.append(f'Challenges:{level.name}')
+
     def return_to_main_menu_session_gracefully(self,
                                                reset_ui: bool = True) -> None:
         """Attempt to cleanly get back to the main menu."""
diff --git a/assets/src/ba_data/python/ba/_campaign.py b/assets/src/ba_data/python/ba/_campaign.py
index fff28fe2..9a55282a 100644
--- a/assets/src/ba_data/python/ba/_campaign.py
+++ b/assets/src/ba_data/python/ba/_campaign.py
@@ -49,12 +49,12 @@ class Campaign:
         """Whether this Campaign's levels must be played in sequence."""
         return self._sequential
 
-    def addlevel(self, level: ba.Level) -> None:
+    def addlevel(self, level: ba.Level, index: int = -1) -> None:
         """Adds a ba.Level to the Campaign."""
         if level.campaign is not None:
             raise RuntimeError('Level already belongs to a campaign.')
         level.set_campaign(self, len(self._levels))
-        self._levels.append(level)
+        self._levels.insert(index, level)
 
     @property
     def levels(self) -> list[ba.Level]:
diff --git a/assets/src/ba_data/python/bastd/ui/coop/browser.py b/assets/src/ba_data/python/bastd/ui/coop/browser.py
index 90e35fe8..84d0ccfe 100644
--- a/assets/src/ba_data/python/bastd/ui/coop/browser.py
+++ b/assets/src/ba_data/python/bastd/ui/coop/browser.py
@@ -720,7 +720,7 @@ class CoopBrowserWindow(ba.Window):
                                          self.run_tournament)))
                 v -= 200
 
-        # Custom Games.
+        # Custom Games. (called 'Practice' in UI these days).
         v -= 50
         ba.textwidget(parent=w_parent,
                       position=(h_base + 27, v + 30 + 198),
@@ -751,11 +751,9 @@ class CoopBrowserWindow(ba.Window):
                 'Challenges:Pro Easter Egg Hunt',
             ] + items
 
-        # add all custom user levels here..
-        # items += [
-        #     'User:' + l.getname()
-        #     for l in getcampaign('User').getlevels()
-        # ]
+        # If we've defined custom games, put them at the beginning.
+        if ba.app.custom_coop_practice_games:
+            items = ba.app.custom_coop_practice_games + items
 
         self._custom_h_scroll = custom_h_scroll = h_scroll = ba.hscrollwidget(
             parent=w_parent,