I just woke up and have read your explanation. I do not completely understand mostly because I'm not clear on what this thing does. It seems to me you should try another approach to what you want to do other than using inputbox and a loop. If you really must use a loop then introduce some flags that will help you decide what to do.

If you find you need to use for/next and a GOTO in a loop, then it is likely you need to redesign the solution. That's just my opinion. I cringe whenever I use a GOTO, but I know sometimes it's necessary. Since you are implementing user input, repeated prompts are not always user friendly anyway, so that's why I say think of another way to do it. Why not plain form with OK/Cancel buttons and use flags to enable and disable them?

If I were more awake I might understand your problem. I didn't want to ignore you but I've got to go to work now and won't be able to answer later.