adding this line
EnablePluginCancelButton=1
on the cakewalk.ini file
wich is there (C:\Users\user\AppData\Roaming\Cakewalk\Cakewalk Core)(see the picture below)
nex time you will open a plugin(there will be a new button on top- right of the plugin
like you see in this picture below
let's say you open a plug to make some adjustements and you dont want to keep it,
you just press this button,it will discard the change made on the plug..
thanks martin