Delete of Mount/UnMount actions

Summary

In Case of done a mistake by mounting a entity to an configuration (f.e.) choose the wrong sensor, i want to be able to delete this mounts from the cfg. Current situation - i can unmount the sensor at the same time as mounted- but this has some unwanted effetcts:

1. in select by action - i see both actions but doesnt matter what entry is selected - the UI jumps to the unmounted one.
2. The history is spamed.
3. And i can not use this sensor in an other cfg B at this timepoint - means i habe to mount it twice from the past to the "wrong mount/unmount timepoint in cfg A" and then have to mount it again in CFG B starting after the mounting timepoint of CFG A.

Recommendation: Add an new option of Deletion of mount/unmount actions - maybe with some restrictions like mount time = unmount time

Please give Feedback: -@paul.remmler , @marc.hanisch , @tim.eder ,@nils.brinckmann