gio:simple-action-group-insert (group action)

group -- a g:simple-action-group instance
action -- a g:action instance

Adds an action to the action group. If the action group already contains an action with the same name as action then the old action is dropped from the action group. The action group takes its own reference on action. The g:simple-action-group-insert function has been deprecated since version 2.38 and should not be used in newly written code. Use the g:action-map-add-action function.