How to add FXXX Unicode values to Arabic Glyphs

I have imported a bi-script Arabic and Latin typeface file from Glyphs 2.4 to Glyphs 2.6.

I noticed that the FXXX Unicode values for the initial, medial and final forms of the Arabic glyphs are missing.
How can I add the FXXX Unicode values to Arabic Glyphs already existing in the file?

Is this function available in the default Glyphs options? Or a custom code should be written for it?

Thank you

2019-06-11T22:00:00Z

Hi Pascal, how about selecting the glyphs and running Glyph > Update Glyph Info? You need to have “Use Custom Naming” unchecked in font info beforehand.

Perfect!
So easy.
Thank you Tosche.