but there must be in this specific order
Glib keyfile docs say "groups in key files may contain the same key multiple times; the last entry wins." so any position after the first will work. But the first doesn't work any more does it? You could have done the same with
As you said there is no way of assigning multiple keyboard shortcuts to a single action. As this is the only likely user for that its unlikely that it will happen.
But so long as ctrl= is not assigned in Geany it will fall through to Scintilla and, as a special case, it may be possible to assign it there with code like (untested):
``` sci_assign_cmdkey(sci, '=' | (SCMOD_CTRL << 16), SCI_ZOOMIN); ``` in a suitable place to initialise all Scintilla objects, maybe in [this](https://github.com/geany/geany/blob/96e6fb7d3d924354a1bc9226f389124d29506010...) function.
"Somebody" could try it and make a PR if it works.