No, unless you have the bottom image LNB in my post#7 above (i believe not).
Each of the 3 hooks carries all 3 signals. Indeed, they have the default port as indicated 1,2,3 but the receiver diseqc port settings would take care about this.
Your receiver settings need to be like this:
Satellite:--------------119°---------110°----------129°
LNB Power:------------On -----------On------------On
LNB Type:-----------OCS-DP-------OCS-DP-------OCS-DP
LNB Frequency:-----11250--------11250--------11250
Transponder:--------12239--------12224--------12282
22khz:----------------- Off-----------Off-----------Off
Search options:--------All------------All------------All
Network search:-------On------------On------------On
Diseqc :---------------Port 1--------Port 2----------Port3
Motor:----------------Disable-------Disable------Disable
Legacy Switch:---------Off------------Off------------Off