It shouldn't need turning off and on for the changes to be active.
The BC has an edit buffer that it loads the preset into when you select a new preset (1 to 32).
As this preset remains how you left it, even after you turn off the BC, Mark calls it Preset 0.
This is the active preset so if you change this Preset 0 the changes are active straight away.
In Mark's editor, when you send any preset from 1 to 32, he adds a "Save" statement to store it in that location, but he warns you first.
It doesn't go anywhere near the active preset so the changes don't take effect until you select that preset and the BC loads it into Preset 0 and becomes active.
When you send Preset 0 you can't add a Save statement so it goes straight out to the BC and becomes the active preset.
So if you see a warning about overwriting the preset, then you know that after it is saved you have to select it again for the BC to load it into Preset 0 and be active.
In BC Manager I always find it best to copy and paste the preset I want to edit into Preset 0 and then send Preset 0 to the BC.
Now I edit Preset 0 in BC Manager and after I send the changes to the BC, I can test the changes straight away.
All the best
Royce.