Hello António, 

You can set your employees to work on different locations at different times. You choose one default location in the Details tab for that employee, but when you go to the Work Hours tab you can set different work time periods for each day in the week and assign different services and locations to each work time period. 

When you click on the 'pencil' icon you can edit that work time period, and by clicking on the '+' sign next to Apply to All days you add a new work time period.

There isn't a possibility to set different locations for one work time period, though, if that is what you want to achieve. If this is what you need, you can create a custom field for the services where customers can choose one of the options that you set or write their own address or similar. You can read more about custom field following this link. 

Category/service can't be directly assigned to a location, but via employees. You can assign different locations and services to each work time period you set for the employees. 

If you have any further questions feel free to ask.