Question: poinplot3d add names of point

Dear all;

Please in this code Maple, I plot using pointplot3d, some points. I would like to add a name of each point.

The name of each point  P:=[x(i),y(j),t(k)] is u[i,j]^k.  Please how can I add the name at each point. here is the maple code. 

Thanks.

pointplot3d.mw

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