Re-interpolate Color Palette Layers in selected master

[obiobik]

Is there a way to do that with script?

[mekkablue (Rainer Erich Scheichelbauer)]

Reinterpolate from what?

[obiobik]

I have a file with 2 masters. Copied the bolder one with its Color Palette Layers to make an extrapolated master. Extrapolated (by right-click re-interpolate) the main layer but need to reinterpolate the Color Palette Layers too instead of doing one by one.

*Copied the master first then extrapolated because If I add an extrapolated instance as a master I lose the Color Palette Layers.

Also this question kind of related to this question

Copying glyphs from extrapolated master

Say, I have 2 masters with weight axis, in the bold master the lowercases are lighter compared to the other glyphs. I created an extrapolated master (Black) to add more weight for lowercases. Now I want to take these lowercases and put into the bold master, keep the other letters same and delete the extrapolated Black master.