How to update multiple variables in one action?

[wmortume]

I want to update the username and password on a json file but find it redundant having to call the action twice to update both. Is the action able to update multiple variables at once?

[albertoperdomo2]

Came across this action today but I find it weird to call it twice in order to update two or more JSON fields. Is there any way to do so?

[patylgoto]

I'm also interested in this possibility.
Are the issues being checked on this repo ?