Hi Jinghang! Thanks for bringing this up! I've shared it with the team, and they are already on top of it. Let's keep our fingers crossed for a Q4 release! 🤞
While we wait for these features to roll out, you might find it helpful to utilize workarounds such as storing definitions in a separate table and then referencing them in other table builds to replicate global variables.
Hang in there! 😊