In have to paint a line on one table depending on the dimension value. I'm trying to set a expression to do it in custom format cell. Expressions in custom format cell are linked to the dimension? Anybody can help me?
Not really clear what do you want to do. You could set custom cell-formats within dimensions and expressions per click on the plus-sign and insert an expression like: if(CONDITION, red(), blue()). If you want show lines or bars within a table you could choose gauge-charts or mini-charts as expressions-type. Alternatively you could create bars or lines within a cell per repeat() function.
I'm sorry I was talking about the line between two cells in vertical in a table / pivot table. Need that line to have variable color related to a dimension value. Is that possible? That's why I'm talking about Custom Cell format. The only place in which separator line format can be changed is in that place.