[Beta 2, Win 10 x64, Brief] I've got a simple custom document mode for .S files (for arm asm - the default IBM ASM isn't close enough). In Formatting it defines "Indent with tabs": <unchecked>; "Syntax indent": 16; "Tabs": +16; Adaptive OFF for all. This seems to give a state where if I hit Tab I get 16 spaces irrespective of current indent. I'm pretty sure that in v24 I got tab stops at 17, 33, 49,...