Thank you so much and I'm glad you enjoyed the demo!!! 🙏🙇🏻♂️
So I'll answer the questions:
1. Yes, and there are multiple ways to do this. I'll tell you one way, and if you want moar you can ask me via Discord for a faster respond. In the demo, open the menu, then open Options, you'll see a button called Button Config. In here you can rebind Dash (or Dodge, I don't remember how I named it) to RT button.
2. Currently, there isn't a feature like that. It does handle skill unusable when OOM, but it doesn't make the skill icon to be grey. It only greyed out when on cooldown. You can set up a cooldown by adding notetag <slot cooldown: 3> to the skill you want to assign a cooldown. In the demo I didn't do that so players can spam skill freely.
3. Yeah, you can toggle Through ON, this is the quickest way to let player to step through the companion. Another user actually evented the baby to detect if player is nearby, then if true, the baby would move away, which I think is a better approach.
If you have any more questions pls let me know via Discord :D