Creating helplines for Measurements

Hello everyone

I’m looking for a way to create auxiliary lines at the start and end points of a dimension.

This should serve so that I can run this script before reloading the linked files and thus not lose any dimensions.

My suggestion so far would be:
Measure objects - ventilation, architecture etc.
Create lines at the dimensions that refer to it.
Reload linked files and then make any changes.

Is there any solution for this, or could someione help me to find the way to place lines at the Points from the Measurements?

thank you.