Make a selection wireframe?

If i’m working on a mesh where I need to see what is under it, is there an option to make only the selection wireframe and not the whole viewport? Or better yet a material to make it semi-transparent?


Set the selected objects display in the object settings (see screeshot)
Objects with transparent materials will show as transparent in the viewport if:
In textured view and in the Properties (N) / Display, the shading is set to GLSL
In Shaded view with the transparency option selected in the attached image


Thanks, but it looses the transparency in edit mode, is there a way to keep it?

Press ‘z’ to toggle wireframe mode on and off.