Embarkation Question for Handicap

[cruisinforfun9]

Hi - We are traveling this Spring with my parents whom my dad is handicapped and will be in a scooter.  We are in separate rooms, my parents Haven and myself non-Haven (only b/c there is no more Haven rooms to book ;().  My parents would really like my assistance with embarkation as in addition to scooter, they will have their belongings and an oxygen tank, etc.  

 

I know what Haven checkin looks like at other ports, I’ve never paid attention to handicapped but I was just reading that handicapped travelers get to board first.  

 

Will we be able to board as a family if my dad is in the Haven either through the handicapped line or simply by splitting briefly while they checked in at Haven and I checked in in the non-haven lines?

 

Thoughts, my parents are sad that we couldn’t get a Haven room and I’m trying to gain all the facts that we will still be able to help them when they need help.