select similar

The idea of Ian is a good one.

In addition to that:

You may want to look into the dropdown of the Element-Selection Tool. There you have several options to select elements either by attributes, element type and much more. You can find these options when you press the litte black triangle in the Element-Selection Toolbox, 

The idea of Ian is a good one.

In addition to that:

You may want to look into the dropdown of the Element-Selection Tool. There you have several options to select elements either by attributes, element type and much more. You can find these options when you press the litte black triangle in the Element-Selection Toolbox,