Returning a Set of Values from 3 different tables based on 2 criterias

[CubaRJ]

Hi! I am struggling to find a suitable solution for this problem, and hoping you guys can help me.

1. I have 3 different worksheets containing training matrces for installations;
2. Each tab belongs to an installation;
3. The columns and structure are the same for all of them, and the difference between them is "Positions" and the training required to work in each installation.
4. Important to note this matrix does not belong to me, so I cannot change its structure.

The problem: how can I make a summary to reply to a couple of questions we have about these matrices?

For example:

• How many training sessions are required for position X to work at Installation Z?
• How many days are necessary to attend training to act as Y at Installation W?
• How many hours of training are required to be fully competent in position G to work at Installation D?
• If we consider a new employee taking all training on Year 1 and each training having its own expiring date, what will be the year-over-year training backlog to avoid expiration?

The summary will show the answers based on B2 and B3 drop-down choices from users. The idea is to change them and reload the table below to return the mandatory trainings and calculate the answers.

Since Excel has several formulas and also Power Query or even VBA, I am not sure how to use them to achieve the results.

Can anyone help me?

PS: I did not find a way to post the sanitized spreadsheet for you guys to see it. If anyone know how to attach it, please let me know. But I am leaving the Link to file from my iCloud for download.