In the project parameters, you can define default values for wall panels lengths and the default starting point of stud positioning.
Activate Project Document Browser
Right-click Settings and select Edit Project Parameters.
Click 1st Level Wall Framing and type in maximum, minimum and preferred panel lengths.
Example in imperial units:
Example in metric units:
You can set preferred panel lengths for Exterior Bearing Walls, Exterior Non-Bearing Walls, Interior Bearing and Interior Non-Bearing walls separately by clicking the tabs in the bottom of the project parameters dialog.
Repeat for each level by selecting the wall framing sets for each level.