Firstly, my thanks for the inspiration for this to Reza Dorrani in his great video. Please refer to it if necessary for the checkbox gallery insertion process. I am now taking this a couple of stages further with: – A short example of it working is below Firstly, if the code seems a little over-complex, it is due to some refreshing issues I had in testing and the below seems to work as intended. It is based off a test list of PC devices, but can be applied to any similar structure. As I mentioned, the primary radio control is stored in a Text field. For the secondary filtered item, create a Choice type column (as…