"SUM" field in Project Forecast window

Dear @SMANUEL 

Unfortunately, IFS EE has a painful history with the OS scaling, and it’s acceptable too. In general, any application that supports auto-sizing and scaling screws up the screens when the Windows scaling is changed.

However, I’ve seen users managed scale>100% with different screen resolutions. 

Please refer the following community post which expresses some experiences that I also agree.

IFS Enterprise Explorer in high resolution | IFS Community

As there’s no proper guide (because this depends on IFS version, OS version, screen resolution, scaling, etc. and the solution varies with such a lot of parameters) it’s always mostly trial-and-error resolution.