You said she escaped her egglaying bin...that's why I use a 65 liter rubbermaid container and put the lid on it. I cut a bit hole in the lid and screen it over. This allows me to put the lid on when the female is in there without suffocating her. I can put a small light over the screen---remember, the container will heat up quicker than one that is completely open on the top. I can feed her and water her while she is in there...but just make sure that no uneaten insects are taken out so they won't munch on the eggs or her while she is laying the eggs.
You said..."Should I wait until. she is wondering the bottom of her cage to put her back in the container"...I put a small container of washed sandbox sand in the female's cage. It needs to be big enough for her to fit into (when its empty) with a bit of room on all sides. I fill it about 2/3rds full of sand. This gives her a place to start digging to show me that she is ready to lay the eggs. This way I don't have to worry about why she is wandering around the floor of her cage.
Hope this helps and that yours will soon lay her eggs. They are such a worry!