Word of advice....you now have 3 posts/threads about your chameleon and egglaying...it would be better to keep it all in one so we can follow what's been going on!
If she slept in the hole last night BUTT DOWN, then she may very well be laying the eggs today or already. When she's done laying the eggs, she should fill in the hole and tamp it down and return to the branches, hungry and thirsty and thinner. Once she's done, it would be good to know how many eggs she laid. How long have you had her? If there's any chance of the eggs being fertile, I would incubate them.
Its normal for them to take a few days to dig the hole to their satisfaction. They usually return to the branches in between but sleep in the hole when they are ready to lay them.