Hi, in SAS 8.5.1 I have 107 time series columns and I want to let the user plot one of them. To accomplish this, I use a select box with a parameter and a custom measure like this:   IF 'par1'p = "var1" RETURN 'var1'n ELSE IF 'par1'p = "var2" RETURN 'var2'n ELSE IF ... ELSE . but I would like to know if there's a solution for this error that SAS VA pops up:   "The expression cannot be saved because an operator is nested too deeply. The current depth is 107 and the maximum depth is 100."   Thanks in advice, Pierangelo     ... View more