The suggestion is simple. I don't know if the implementation is simple. Channel HUD is useful when you communicate where you are, when you are mini-bossing or window-shopping, etc. Server Time HUD is useful when you take a screenshot for whatever trades you are doing or just to capture evidence to report someone. Ideally, you can turn them ON/OFF. Sorry if these already exist Thank you!
You can use ~servertime to display the current date and time. This can't be done while in a trade, but you can do it before trading for records purposes. You can also add ~servertime to a macro skill shout, which will trigger it. As for the "Channel HUD", I'm not sure what you mean here. Unless you are in a place where you can't check the channel (you can use a mule to /find yourself, kind of troublesome), but it's not necessary in those scenarios to really know the channel you're in at that moment, right? I don't see the benefits when whoever you're communicating with can just /find you or can tell by whispers.
If you hover your mouse just to the right of your IGN on bottom left (left of your HP bar) it will show your channel
Thank you for your reply~ What I wanted to say with all this is that it would be nice to see Server time and Channel all the time without any additional operation. Thus, HUD. That's a nice sneaky way to bypass the typing! Thanks! Yes, something like that all the time at a corner of the screen. But, as you said, hud in maple can be very awkward to handle Didn't know that! Thank you!