Tab menu invisible...what to do?

Hi, whether importing SVG or using standaardshapes in Easel I’m unable to use the Tab function. Actually it is never available when using: Firefox, safari or Chrome. I have an IMac and run osx el capitan.
Anyone sugestions!?
Thanks Oliver

Are you setting the depth of the shape all the way to the thickness of the material.

The tab option only becomes available then.

I also realized recently that you have to set the depth of the cut deeper than the material after you set the material thickness. If you set the cut depth then adjust material thickness, you will have no tabs. I was wondering what my problem was for days! I was convinced they removed the tab option.