WEBI Nesting IF statements and use of ELSE

Hi,

Am quite new to the use of WEBI as I have traditionally been brought up in a full client environment so am used to writing IF statements with THEN and ELSE commands. However I noted that the same functionality doesnt appear to exist in WEBI, so was wondering how one writes an IF statement against a variable which has four outputs which all need to be independently named. Have tried using ; between if statements but it only appears to allow me to use a maximum of two....

Appreciate the assistance.

Thanks,