I know there are variables in Figma Slide. We can create color, string variables in the file, by picking them from existing layers or areas.

However we cannot see any panel like this Local variable section in a normal Figma design file.

I wonder if it is in progress of adding this same feature in Figma to Figma Slide or, you just forgot to do it. Or may you have some reasons to eliminate this helpful feature from Slides?