#253 No common use for menu shortcuts

[Philipp Mewes]

In the ScaffoldTree-View there is a menu-item Configure Property Mappings.... The shortcut for this action is STRG+P. However in most applications the common use for this shortcut is an action to print the current view. Maybe this should be changed to another shortcut, which is not in use so far.
On the other hand, some users might become accustomed to this shortcut and would not benefit from these changes.

In this context, it might also be reasonable to add the shortcut STRG+S, which is commonly used for save-actions.

[Sven Schrinner]

I recently missed the Crtl+S shortcut for saving a session, so it might be a good idea to add it. Additionally a hotkey for loading a session might also be handy. Crtl+S and Crtl+L are not used by any view or any general program function.

[Till Schäfer]

if you have a good alternative for the property mapping dialog shorcut, I always favor standard shortcuts, i.e., change it.

Is ctrl+m used by any view?

[Till Schäfer]

(alos ctrl+s and ctrl+l should be added)

[Philipp Mewes]

Added STRG+S and STRG+L. Changed STRG+P to STRG+H since STRG+M is already used for "Show Scaffold Molecules".

[Till Schäfer]

changed back ctrl+h to ctrl+p as the first shortcut seems unrelated to the feature and we actually to not have a print feature. thus i would rate related naming higher than expectation in this case.

[Till Schäfer]

merged with [239c8b]