ZBrushCentral

Urgent problem with merge no weld

I have a situation that i have to paint a few subtools at the same time because i need to be able to match each object seamlessly. However I have read up previous post about the subtool problems I had to try a different way to solve this problem. I determined that under a grouped objects painting will able to paint across different object seamlessly.
In order to produce this:

Had a grouped object which composed of 3 different parts.

Do the split group and break that object into 3 parts.
Import images each psd file is about 3M and map those onto each subtool.
Tried to group up 3 subtools hit merge with NO WELD.

It came up a new subtool set this time I dont see those colors on the subtool at all.
I tried to check on texture and colorization.
Nothing I could find to see my texture is on the object.

Tell me if that is normal or I have to do something more???
Ugrent!

it is normal since you cannot select multiple subtools at the same time.