Can I define my own hierarchy separator ?

[lemmuh]

I'm very much used to use the '/' character (as modelsim does) as hierarchy separator. Why is nvc using the ':' character ?

Can I set this somewhere as an normal user (maybe options) ?

[nickg]

Do you mean in paths printed by NVC (e.g. in diagnostic messages), or the paths given to VHPI, etc.? The : comes from VHDL's standard separator for the 'path_name and 'instance_name attributes.