%MOVE_concat%

combine two MOVE-statements

MOVE($MOVE_index_first$) = ... MOVE($MOVE_index_second$) = ... MOVE($MOVE_combined$) = ( %MOVE_concat%, $MOVE_index_first$, $MOVE_index_second$ )

The geometry with MOVE-flag $MOVE_combined$ moves based on the combination of the movement for MOVE-flag $MOVE_index_first$ and the one with MOVE-flag $MOVE_index_second$. The order of the MOVE-statements does not matter as the computation of displacements and the actual changes in position are decoupled. So, based on the current positions the predicted movements are summed and at the beginning of the next timestep they are executed.