copy to the control = copy the clicked background template to replace the existing control template. The background template remains unchanged but hidden below the new control template which will now be superimposed over it. The assumption is that you are going to move the control template, although sometimes you may copy a background template simply to see its data in the info panel.)
delete to the control = copy the clicked background template to replace the existing control template. The background template will then be deleted from the storage box and from the .box file. The control template must be stored again at some stage if it is to remain a part of the track plan.
make the control = store the existing control template, then as delete to the control. This is simply for convenience if you know you are going to first store the control template and then delete another one to the control. With make the control Templot does both functions in one go – this is handy to swap between two or more templates when for example shoving timbers or adjusting check rails, and when working with partial templates.
wipe to the control = copy the clicked background template to replace the existing control template. The background template will then become an unused template. It remains in the storage box and the .box file, but it is not visible on the trackpad. As an unused template it can be easily restored to use if you find that you need it later.