'Object is busy' error with click repeat

I am currently running six toons on a single computer in LoTRO, but I have an issue with quests givers. I have a macro setup:

Step 1: shift + F2 -> all others
Step 2: 'U' -> all
'next click' -> all

Which works perfectly. shift + F2 tells all the other toons to assist the group leader, and 'U' tells them to interact with the target.

The problem is, when I go to a quest-giver with more than one quest, only about half (sometimes only one) open the quest panel, the rest report a turbine error of the 'that object is busy' type.

Is it possible to add a small delay (50mS?) between the click going to each window? I think that would be enough to get all the toons on the same page.

[lax]

No, ISBoxer will not, ever, perform any "delayed" action where the delay is not directly related to your manual movement of a control (e.g. pressing or releasing a button).

I know it would be pretty convenient to have such a feature in many scenarios, but unfortunately this would run afoul of the rules we strictly adhere to in order to keep ISBoxer safe to use in all games.