PointIDs for TTFAutohint control instructions

If I want to include TTFAutohint control instructions, what are the values I should include for the pointIDs? I guess these are not the coordinates in the Glyphs file. So how do I get the pointIDs values in Glyphs?

There is currently no way to do that in Glyphs. I’ll try to find a way to make that easier.

I use the TrueType Viewer Tool by Rogier van Dalen. Load the font, open a letter, turn on point coordinates.

Thank you @GeorgSeifert and @mekkablue. I can also use Visual TrueType for knowing these values. I just thought there was maybe a tool in Glyphs for that, so I didn’t have to open the file in another software.