Kerning group Overlap

Is it possible to overlap the kerning groups in the glyphs app?
for example:
group 1 includes X . V . W
group 2 included X . A . Z
The X glyph (frome Left) be in both groups.

Then which rule would be used in a combination like YX?

If Y Have Linked to both groups. The problem is caused.

Technically that is possible. There are two problems. If a pair would be in two classes on both sides, the values for bot pairs would be added together. This makes it very unpredictable. And I don’t have a good idea on how to handle this in the UI.

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kerning in Arabic type are more complex than latin, and this will be very functional for it.

Can you give an example?