Actions Multiselect Delete Selected on Device

I need to select several actions and delete the selected only direct on the device GPSMAP H1.

I did not find a solution.

Connected over USB: thats possible with a filemanager.

Far away from a computer thats no solution.

Synchronizing (bluetooth) from a mobile with Garmin Express does not work with actions as I expect 

- deleting actions in Garmin Express on the mobile any synchronizing again with the GPSMAP H1 does not work!

Synchronizing (bluetooth) from a mobile with Garmin Express works fine with tracks / routes and collections managed with Garmin Express or the GPSMAP H1.