Firstly, my thanks for the inspiration for this to @RezaDorrani in his great video.

I thought I would take this a couple of stages further with: -

• Dynamic selection of the Checkbox content filtered off a (single select) Radio control.
• Store the radio value in a Text field and the Checkboxes content in a Multi-Choice field.
• Show and modify existing records including a change in the Radio Control content.
• Continue to do all of this with SubmitForm() rather than any Patching.

We are all used to web searches giving suggestions of possible values you want and combo boxes have a search function, but plain text inputs do not have anything built-in for this, so it should be useful to have this function as well.