If you are forever applying the same preset on a plug-in then you can set it as the Default setting for that plug-in so whenever you choose that plug-in it will have that preset pre-loaded. To do this, first make sure that the plug-in is set to default to the User Settings, which you can do from the Settings menu.
Now select your chosen preset and then go back in the plug-in Setting menu and select Set as User Default.
Although in the early days when you don’t own too many plug-ins, you won’t need to scroll to far down to select the one you want. Once you have more plug-ins, the list gets very long.
However there is a neat trick where if you Click on your favourite plug-in in the list whilst holding down the Command (Mac) or Control (Windows) next time you look, it will be at the top of the list.
To remove it simply repeat the process and it’s gone!