If you thematically choose the color of your codes, you can use the function “activation by color” to activate them. Documents and codes can be activated manually (by clicking on them), automatically (via activation by variable), and also by color.
There is a filter-symbol in the toolbars in the „Document System“ and the „Code System“ where colors can be activated.
After clicking on this symbol, a dialog field appears with all the colors that have been used for documents/codes so far. You can then check the box next to the colors to be activated. The two radio buttons at the top also let you check or uncheck all of the colors with a single click.