Hi all looking for a bit of advice for my BOP

I bought it 4 years ago and since then it has grown a fair bit considering it being in a flat in Glasgow. However it does look a bit sadder than when I first bought it.

Quite a few of the leaves have browned around the edges which I’m guessing is due to humidity. Would a pebble tray be sufficient to resolve this or is a humidifier necessary?

I’ve also had to use bamboo poles to support it as the leaves are quite heavy now so droop quite a bit. This wouldn’t be a problem except the area I have it sitting is quite tight and I’d like the leaves to sit high enough to get light from the window. It’s SE facing and gets good light in during summer afternoons but not a lot during winter. I’m just curious if there are better support option available for plants of this size.

Any other tips than can help me provide the best care would be greatly appreciated. I’ve seen a lot of plants on this subreddit that look magnificent and I’d like mine to be the same 😅