The only other way I can think of would be to force the action via Call Script commands. It's not that complicated: it's simply mimicking the Force Action command.
There are several steps for this:
1 - Go into the Scene_Battle
section, and just under Scene_Battle < Scene_Base
, add this line:
Now you can use Call Script commands when you intended to use Force Action.
2 - First, indicate the type of action. For a skill, it's 1.
$scene.active_battler.action.kind = 1
3 - Then, the ID of the skill.
$scene.active_battler.action.skill_id = 3
I used 3 as an example, but you can use whatever you want.
4 - The target of the skill. You have three possibilities.
The previously selected target.
A random one.
$scene.active_battler.action.target_index = 0
A specific target. The number is the index in the troops.
5 - Then turning the force flag on.
$scene.active_battler.action.forcing = true
$game_troop.forcing_battler = $scene.active_battler