@brngrn11 - I read your example as more time related vs. light intensity.
If you are trying to expose blocks 1 and 4 first - with 2 sec exposure, then WITHOUT moving anything, turn on 2 and 3 for 2 seconds....well, that's a bit different than managing grayscale.
Should this be what you are trying to achieve, I wonder if you can alternate between preventing the tray rotation and normal use using a layersettings.csv file.
To run off tray rotation - see here
to create a layersettings.csv file - see instructions here
I'm not sure if all the settings available via SSH are possible in a layer settings file. Probably not... would be nice though!