Add ⌘/Ctrl+5 View Below to easily customize support

[jasu]

To generate custom support for a difficult model it would be great to have a fast way to look underneath the model. Support columns are often impossible to place in a sophisticated model because other structures are in front blocking access. Currently, the only way to do this for example for a protein ribbon model (see below) is to laboriously rotate with the mouse. After you have finally arrived at the view from below and placed your column it takes ages again to rotate back.

It would save a lot of time to add a new preset view to Simplify: View Below, e.g. ⌘/Ctrl+5 - just under the current presets 1-4 (see below).

Since the return to the previous view is also inconvenient, I would love to be able to use a shortcut like ⌘/Ctrl+0 to return to the last perspective. This would allow users to switch from below to top view without hassle.

With these to hotkeys one could quickly swivel the view to below the model, customize support, and return to the previous view without 20 mouse movements. A real time saver. Plus, I often accidentally place a bad column when clicking and scrolling the view with the Add new support activated. This error would also be avoided.