Hi Thomas:

You can define the default value for x_break as follows:

• Activate developer mode.

• Go to the view/form where you have added the field.

• Click on create to open a blank record and type 0.75 into the field.

• Go into "Open Developer Tools" (the bug symbol at the top right of the screen) and choose "Set Defaults". Select "<name of x_break> = 0.75" and "All users" and click on "Save Default". This will save 0.75 as the default value for all users.

For the second step (assuming you have added another field called x_netto_hours), you can set the following in the Advanced Settings section of the field:

• Dependencies: worked_hours,x_break

• Compute:

for record in self:

    if record['worked_hours'] and record['x_break']:

        record['x_netto_hours'] = record['worked_hours'] - record['x_break']