Not directly but you can make a defacto template file which is a model containing an unused material or load that has some data using the units you prefer. Then when you start a model, start from that file and it'll have set the default units for subsequent loads/etc.
The way default units work is it tries to suggest units that either you've already used in the same model/session or that form a coherent system with what you've already used. So if you use mm and Pa, then try to add a force, it may default to micronewton. If you use mm and MPa then add a force it's more likely to default to newton. Either way, after you use any force unit somewhere, it should stick to that same unit as the default for subsequent loads.
Comments
The way default units work is it tries to suggest units that either you've already used in the same model/session or that form a coherent system with what you've already used. So if you use mm and Pa, then try to add a force, it may default to micronewton. If you use mm and MPa then add a force it's more likely to default to newton. Either way, after you use any force unit somewhere, it should stick to that same unit as the default for subsequent loads.
Tkx for quick reply. Works.
Regards
Henrique