(ongoing...)
While creation Simulink diagram, it might be useful to quickly disconnect all connected lines of a block.
As an example, module pbDisconnect_training_vU0 has been open :
select the Subsystem block subsystem :
and choose to disconnect the selected blocks :
As a result, all connected lines are erased :
It is also possible to delete immediate connected block.
Choose the option '' and disconnect again (first, close module pbDisconnect_training_vU0, and [retour,leMessage]=scr_mod_set_unfree('pbDisconnect_training_vU0');open_system(pathLib,'force'); reopen) :
Result is :