1. It should bring out the embedded language to use a .xml file in "Ploppable RICO Revisited\Locale" like 'Extra Landscaping Tools' mod does.
That's because that It's not all player want to see their nature language but english. And if use a .xml file, in fact player can translate by themself or help to improve language translation.

2. There is a function need to be upated that Ploppable RICO should add a 'Real-Time update' or 'A Reload Button for PloppableRICODefinition.xml of custom assets' for when you add new building with mod in-game or changed data of PloppableRICODefinition.xml of custom assets in-game.
For now, when you add new building (whatever from game or custom assets) or changed data with mod in-game, you need closed game and restart game. That's make crazy.

3. Ploppable RICO should add 'Level' filter for each building type.
For now, whatever your added building are 1 level or 3(5) level, they just all in the main building type label. So when add 'Level' filter, player can easy choose what level of building they want.

(You can delete this post after you read it if you don't want to keep post.)