As I said this is a community forum.
If you have purchased a Qdabra product and posted your question in the appropriate forum I'm sure they will get back to you within the agreed and contracted service hours.
They (Qdabra staff), and others here, are experts in their respective fields, and none of the hours spent in supporting each other is either cheap nor free, you assume that you will get an answer "without needing to pay for support" whether it has been answered before is insulting to most on this site, well me to at least.
Might I suggest that you brush up on your ability to search the web, there's a thing called Google that has been supplying answers for years, without relying on charity of others experience prior to posting questions in these community forums.
As to your reply, you neglected to mention that your required assistance with a formula with a "preceding-sibling" precedence, which would lead me to believe that you were attempting to gather a value of a drop down list embedded in a table or repeating section.
Good luck with that, dependency is a ***.