Welcome to the Forum!
Our very own hog videos are a brilliant antidote to the lockdown! Glad to hear you have had some activity – makes it even more interesting if there are more than one hog, so that we can also see any interactions between them.
Yes, you might need to get another feeding box, if you have several hogs visiting. Although they might try to adjust their visiting times. But also, some hogs don’t seem to want to go into feeding boxes at all, so you might want to try an outside area as well. You can use a piece of sheeting (see through, if possible, so you can see the hogs more easily) balanced on bricks or earth filled flower pots, which is up to a point, a cat deterrant and the hogs seem to see this as still eating outside.
Hope you continue to enjoy their visits. Good luck and happy hog watching!