There are currently two different types of select tools. The dynamic select tool and the normal select tool. In my opinion there should only be 1 tool and it should be a mix of these two tools.
First the select tool is great because I can select the exact fields that I want, and I can pass new fields through using the "unknown" field. The dynamic select tool is also great because I can write formulas that dynamically select fields. Why not have one tool that does both?
In my mind, it would just look like the select tool, but then on the "unknown" field, I can click on it and configure it. It would basically just open the dynamic select tool interface where I can write formula's etc that select the unknown fields that I am willing to pass through.
For example.. clients add new fields to our data integrations all the time. A lot of the time I dont want these new fields to pass through automatically. But we also do reporting, and reporting could include column headers that are dates (ie sales may 18, sales june 18, etc). As new months appear in our sales data, new columns are added to our reports. I should have the capability to hardcode the fields I want to pass through and then write a formula for the remaining "unknown" fields. In this example I would check mark the fields I know I want, then write a formula that says if the unknown field starts with "sales" then pass it through.
Yes there are workarounds for this type of functionality (such as I could do a dynamic select tool and use the formula function to type in the name of EVERY field that I want to "hardcode"), but that would take a long time if I am trying to pass 10+ fields through.
