Using DS3.0 ,I was trying to generate a shape query from a multiple ligands(19 ligands).The shape query was used but obtained 4 mapping molecules out of the 19 which originally generated it.

Trying to optimize the query ,I changed the tolerance but mediocre gain was obtained.I read about changing grid-resolution of the shape query in catalyst literature but can't do it using DS3 ,,,can you help me?