Currently, the "Locations" (slot/subslot) and "Symbol type" (Jump label, Variable label or value) can only be set on a per-label basis on the "Address Label" tab. For hundreds of labels like the MSX system has this is not very productive and end up not being used.
Please add an option to set the default "Locations" and "Symbol-type" per file on the "Symbols file" tab of the "Symbol Manager" window. This will set the default options for all labels in that file, then the programmer can fine-tune on the "Address labels" tab only the ones he needs. This setup matches better a real world scenario, when the programmer would have a set of SYM files like this:
(locations used a Panasonic WSX as an example)
MSXBIOS.sym (location: slot=0.0, Symbol-type=Jump)
MSXhooks.sym (location: slot=3.0, Symbol-type=Jump)
MSXvarsROM.sym (location: slot=0.0, Symbol-type=Variable)
MSXvarsRAM.sym (location: slot=3.0, Symbol-type=Variable)
MyROMgame.sym (location: slot=1, Symbol-type=Jump/Variable)