The data ist stored in:
C:\Users\YOURUSERNAME\Documents\VST XMLs\PLUGINVENDOR
There are the XMLs of the Remote Control Editor .
I wish that Steinberg make extended use of the RCE .
Hopefully they make the controls under Generic Remote available (not just the 8 VSTi Quickcontrols) .
I don´t like the RCE Mackie Control Integration , it is´t very handy (too much buttons to press).
My personal Idea would be a Editor Window focused Remote Control Editor page switch.
For example you have a VSTi Editor Window in front (focused) the controller would automatically assign the releated RCE Page.
Then if you switch to a insertplugin editor focus the controls switch automatically to that RCE Page.
That would be a livesaver for me 
.
Then they just have to program a lock button to lock the controls to the last plugin that was focused, so any new plugineditor in focus didn´t switch the controls any more.
Then a control dream would come true 