how to link two different maps in slamtoolbox

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Hello all,

I am using slam toolbox for mapping an indoor warehouse and then localizing on the map.

I map using laserscan which captures upper wall area and the ceiling features like vent pipes and tubelights. Because of this the pgm map which slamtoolbox generates is of ceiling which i cannot use for path planning. Hence I want to use another laserscan map which captures stationary furniture and shelves. Slam toolbox localization mode uses posegraph map for localization.

what is the best way to link the two maps so that I can path plan on second.

Thank you