Hide/show elements by selection in 1 step

[JasperJie]

Raised on behalf of Ranjan Rout in Inida user meeting (2017.6.2)

Steps:

1/ Select some tetras/triangles (or use selection by face)

2/ RMC or have button to hide them

 Benefit:

1/ it save time and easy for you to show hide elements (at the moment we can only do it by show/hide layer, you need to remember the layers)