Hi klaudio, thanks for posting the example model. So for many cases you can use the already existing function of window selection to select many edges in one action, you aren't limited to selecting edges one by one by clicking only.

The way it works is you select just one edge to start with - once one edge or face is selected then a window select after that will similarly target edges or faces. Also window selection works in 2 different ways depending on whether you drag towards the left or the right. Dragging towards the left will target things that cross any part of the window while starting on the left and dragging towards the right will only target things totally contained inside of it.

Here's how it works using your file:



- Michael