At the moment it is not possible to import waypoint under a Robotiq force control node. Only, path recording, multipoint path and path generator can be used.
Are you sure you need to use a path generated from CAD data under your force control node ? If your table have a rectangular shape, you only need to set 4 points to complete your program.
Can tool path files be loaded into the Robotiq Path Generator? I'm looking at sanding table tops using CAD data.