(I would think this topic has been covered somewhere in this forum, but my keyword searches must be lackluster. This question has also been posted in another thread that had started dealing with a much different concept - but, I thought that this specific question would be better served in this forum.)

I have a portal that includes a graphic button in each row, that when selected, adds a parameter to a global field and, conditionally formats the portal row. When clicked again, it removes the parameter from the global and reformats the field. It's beautiful. If multiple rows are selected, multiple parameters are added to the global field.

This obviously only works in the FM Client. I have a need for a layout using the same portal information to be accessed via IWP. Obviously, the conditional formatting will not work there. I have searched the forum for a manner in which to use a checkbox on the web layout, but have come up empty. (My concern, of course, is that the user can see which rows have been selected vs. which rows have not)

I tried setting up a checkbox attached to a value list with only one value, and attaching a button with the same set field steps to that checkbox. However, the check box clears itself after adding data to the global field. And if a secondary checkbox is selected it over-writes the global field, rather than adding to it.

Is there another way to add an interactive button/checkbox for use in IWP?

you could use a container field with a graphic that would change depending on a value that you would change with a button