Board Game Arena

Hello! Looking for some help, based on my reading of the rules I understand that once I have earned wild actions from either use of astronauts or planning actions that I can use those whenever I like to change the action card associated with a the number card I am selecting in a turn. Two part question, I am correct in that understanding and how do I take that action while playing in BGA.

Thanks!

If we're talking about the second adventure, looks like you understand it correctly. Once you have the wild action circled (after circling either 2 astronauts or 2 plannings), there's a button "Use joker" in the status bar at the start of your turn. If you click it - you can choose the card effect