Polygon and Slot

Have a look at the sketch palette. 

That is where these reside. 

You can add your own library too that can be recognised by using:

sketcher_palette_path <drive>:\<path>

...in config.pro

really? we need to go to some other place for such a simple thing? I can't even see those yellow on white background.

this is too simple to add right to the main sketching menu. Slots and polygons are used quite extensively.

(But thanks for the palette pointer, it didn't even occur to me to look at that. Palette??)

The palette is a nice addition.  I stash all kinds of neat things in there. 

You can even make catagories if you build a big enough library.

I use the old Pro|E color scheme so things show up much bolder for me.