As per the title is there away of doing it? I have a few small problem areas that basically need filling but the resin is too thin to settle where I want it in one shot. I could thicken it to a paste by adding fillers of course but that would change the colour which I don't want, any ideas?

There are liquid thickening agents, wich keep the resin clear. But if the resin is too thick, it won't release the trapped air any more.