Yes, I understand and apologise, as I did understand you want to do A), but turns out you want to do B) (then C), D)), and B) results not possible with Toolset (and C), D) as well not), as you outlined since the begin it is an obstacle that cannot be overcome.
Let me remind you that we informed you about that twice as early on other tickets where we repeatedly stated "You need to do x to add repeating items", but due to MASSIVE misunderstandings, for which I am ready to accept all responsibility (but know am not entirely), we turned back assuming it's possible what you need to be done with Toolset.
It is not possible with The Toolset to achieve this.
Here is nothing to apologize (I believe), as we just try to find the best option (solution). I 'divide' (as I wrote before) applications on 'communication oriented' and 'content oriented' (Toolset). In other words, Toolset Forms are primary created to 'follow' CPT and custom fields and not as the 'form creator' itself (and there is nothing wrong with that). So, I just believe how I will be simply 'stupid' if I will not try to get more from Toolset (if that is possible) than I in reality should to expect. So, we tried and there is no 'end of the world'.
It is complete another issue, why Toolset developed RFG if we can't solve this very frequent and common 'real life' situations (scenarios), as here is about to repeat set of data, what should to be all of what RFG should to be, right?