I am building my second template with Elementor, and I love it. I am building with Bootstrap 4 which is built with rems in minds, so when I create a new row with Elements, I want to set its paddings and margins in rem as well (so they reduced when I reduce the font size with media queries). However, only px, em, and % are available.

Update: This can be applied to any other element as well. also I tried to use em's instead of rems, but they are not there for margins.