Adding an edge loop to a pyramid I have created a pyramid by adding a cube, then selecting the 4 upper vertices and clicking Alt + m, then "To Center":



I would not like to make the sharp top "dull".

There should not be a sharp end anymore, but instead I would like to create something like this:



To do that, I tried to insert an edge loop into the pyramid. 

However, this doesn't work: It only wants to insert an edge loop at the "ground" of the pyramid (where we still have 4 vertices), but not on top.

I'm stuck. How could I resolve this?

Thank you!

Edit: I found out that the Knife tool allows me to cut my pyramid. Is there a smarter solution anyways?
One quick way is to use Offset Edge Slide tool. Select bottom face and run it (depending on the version) either with Ctrl+Shift+R or via viewport menus:




  Add two edge loops on either side of selected loops.


Offset Edge Slide

Since there aren't any faces on the other side of the selected face before using the command, no extraneous edges will be added and you don't need to dissolve any unnecessary geometry in this case.