Is there a method to create toggle group behavior for standard buttons

Developing an AR app that utilizes buttons to load groundPlane GameObjects from AssetBundles. The script associated with this uses a coroutine to manage loading. When the button is enabled, the script loads the Prefab named in the variable, and then upon OnClick, places the loaded Prefab as well as disabling the button. To insure only one Prefab is loaded at any time, only one button should be enabled at any time.

The builtin Toggle and Toggle Group are not applicable because there is not an "onClick" method. and the script is not contextually applicable.

Does anyone know if it is possible, via scripting, to emulate a Toggle Group, but for these standard UI Buttons which execute the actions described above?