For an item like this you would do best to use the Parametric( Legacy) option in the Figure Setup pane, as DS won't read a weight-mapped figure from a CR2. You could save a cr2 for Poser and a dsf for DS4, but if you don't want things to bend but to move as a unit, as with your door, the old-style rigging is perfectly adequate and can be exported to a CR2 that will work in both Poser and DS, and any version of them instead of just the most recent. You need your OBJ to be grouped, if it isn't - Door for the door part and House for everything else in this case - and t needs to be Poser scale. Import the OBJ into Figure Setup and at the top set the figure type to Parametric. Drag you OBJ into the Hierarchy area, then drag the door to be a child of the house. Right-click on the rotation order column and set the order to xzy (if the door is in the front wall) or zxy (if it's in a side wall) - the first axis should eb the one that runs across the width of the door, the second should be the axis that sticks through the door, and the last should be the axis that it hinges around. Create your figure. Now, select both the door and the house and in the Parameters pane set Bend to off. You could also select the door and click the little gear next to the rotation sliders to relabel y rotate to Open Close and set limits to sensible values (one should be 0, the other should be the amount the door should be rotated to be fully open). You could also hide the two rotation axes that aren't needed. If you export that as a CR2 it should work in any version of Poser or DAZ Studio, though you would probably want custom materials for each.