Working with a formula in Calc: Data => Validity is a very powerful option. (Especially a matrix-formula for a custom cell-range. Very good!)
But entering could be a pain.
A formula could be used in each condition (Whole number, Decimal, ...), but the used cell ranges must be typed!
Mouse-selection as in a regular formula (or in Excel: Validity => all conditions) does only work in condition "Cell range".
And in "Cell range" it does not work with a mix of typing and mouse-selection.
Using mouse-selection overwrites everything typed before.
(In Excel you can mix it as you like.)
With only one cell range in the formula the problem could be resolved by mouse-selection first and building the formula around the taken cell range.
But with 2 or more needed cell ranges in the formula ...
Using names and "Insert => Names => Insert" does not help, because LibreOffice does not allow this function while "Data => Validity" dialog is open.
(In Excel it is possible.)
1.) Make available cell ranges by Mouse-selection in ALL conditions of Validity
2.) The mouse-selection(s) should work in a custom mix with typing (as in a regular formula)
3.) Make available "Insert => Names => Insert" in Validity
Ok, I'm changing this to be about 1).
You should create separate reports for 2) and 3) and then comment here the numbers and I will confirm them.
Adding needsDevEval keyword, so devs can evaluate this for an easy hack.
2.) The mouse-selection(s) should work in a custom mix with typing (as in a regular formula) new in:
3.) Make available "Insert => Names => Insert" in Validity new in:
Bug is still present. No changes in bug behavior.
LO 18.104.22.168 on Windows Vista