Background: features of COTAX: favourites button
COTAX provides a [Favourites] button for each main menu page.
By selecting the [Favourites] button, you can set up a list of the functions you use most often.
Once you have done this, COTAX displays a sub menu of your chosen favourite functions on the menu page. This allows you to choose your options from a list you have tailored to your requirements so you don’t need to remember the four character function codes.
COTAX system help (COSH) gives you further guidance on using this facility.