Here are some hints to make efficient use of the ONELAB graphical user interface:
* Numeric variables can be changed quickly by dragging to the left (decrease the value) or to the right (increase the value)
* After editing a variable by hand, immediately press `return` to record the change in the database
* You can toggle mesh display on/off by double-clicking in the graphics window, or by clicking on `O` in the status bar. The quick access menu also provides links to access all the other display options
* To reset the zoom, click on `1:1` in the status bar
* Check/uncheck the views in the `Post-processing` subtree to show or hide them. `Shift+click` will select only that view and hide all others.
* Click on the little triangle to access the options of a view, or to remove it.
See the [Gmsh reference manual](http://geuz.org/gmsh/doc/texinfo/gmsh.html#Mouse-actions) for additional information.
