Back Tracking

Hi, looking at some airports we have to back track to use the active runway for take off. But at my local airport Plymouth Uk their are two exits from the apron to runway 24, you then have to taxi along 06/24 to the holding point just before the point where runway 31/13 crosses 24/06, then back track 31/13 for active runway, the problem is in fs2004 we are told to hold at the holding point on runway 24 thus blocking any exit from 31/13 to get back to the apron, can the holding points be changed so that i am instructed to hold before entering 06/24 if this is possible then any aircraft taxing back to the the apron would have to use the other entance to the apron that is not being blocked by holding traffic. Is this possible