Is it possible to set the unit of measurement, temperature, and local currency?

Yes, you can set these units in your settings

Click on the gear > Settings

Choose your preferred units.

Each time you create a new Client or Sub-contractor, your temperature and square meters/foot settings will automatically be copied to that company’s settings. Then the Clients and Sub-contractors will all have the same settings as you.

Note: Once created, Sub-contractors are able to change their preferred units independently of their Contractor. Changes are also made through Tools > Settings.