?

Let me make sure i got this right....
Xoops will display all the blocks in the center-center section according to weight.

Then It'll show all the ones in the center-right according to weight.

But not Center-center block#1 weight 1, then center-left blocks, then center-right blocks and more center-center blocks?

In other words All the center-center blocks will be shown together and i have no chance of putting center-right and/or center-left blocks in between two (or more) center-center blocks? Like this:
{center-center block weight 1}
{center-left block, weight1} {center-right block, weight1}
{center-center block, weight 10}


(sorry XOOPS would let me lay out my example exactly centered but youget it right?)

your understanding is correct, center-center, center-right, and center-left are 3 different lists of blocks, so they cannot be combined.