Input Variable

Would be nice to have a possibility to assign variables on pages where a user can input a value that can be referenced on the page. Particularly - on dashboards, to have a field with “goal” variable that user inputs and formulas reference to calculate % of attainment. I hope this makes sense. this would be a huge advantage over standard SFDC dashboards. thanks. (not sure if this exists and I just dont know about it, in that case - please point me to the answer)

Yep. That’s called a ui-only field.

Thank you Matt! this totally just opened my eyes on this use case of UI field. 

Agreed with Matt. If you want the “variable” to persist in the database over time, add a field in the database. If you just want the field to exist temporarily while the user is on the page, use a Ui-Only Field.