When lifting a wall section into position, the bottom of the wall can slip across the floor deck, and even fall off. If you are short on help, a solution is to position the section as it lays flat, then drive duplex nails (with two heads) through the bottom plate into the floor. The nails will bend as you raise the wall to a vertical position. After securing, pull out the duplex nails.
You can extend the the time it takes hot-melt glue to set by slightly pre-warming both the surfaces to be joined with a heat gun. A heat gun also works great for stripping paint and other odd jobs. For example, you can use it to remove bumper stickers, defrost freezers, char-stain wood, dry wood for painting, burn weeds from cracks in sidewalks and patios, light charcoal, loosen rusted bolt nuts and bend certain plastic piping.