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# Merging radio button groups

If the current object editor contains an EV_CONTAINER object, then the following control will be available:

With this control, you can merge two or more instances of EV_CONTAINER together, so that any EV_RADIO_BUTTON contained are grouped.

## Merging

To create a new merge, pick an object of type EV_CONTAINER, and drop it anywhere on the control. This will merge the radio button group of the EV_CONTAINER referenced in the object editor, to the transported one. Each merge, will show up as a new item in the control.

Note: Container objects may only be grouped once, and as such, you will not be permitted to add an object that is already contained in the list.

## Unmerging

To unmerge a container object from a group, pick the representation of that object from the list, and drop on. This will unmerge the object from the current group of containers.

## Locating group member

To locate the object referenced by a list item in the control, left click the item that you wish to locate. This will display the representation of the associated object within the layout constructor, and the associated icon will be animated for a short period of time.