When right clicking the titlebar of a custom window, you can access a popups menu with some default item and some custom items from mIRC.
I often use this popups to toggle the on top setting of a custom window, where the window is originally hidden. Typically in this situation I'm going to hide the window back because I'm done looking at it (just a buffer usually), I would like to quickly hide this window from the same popups menu rather than making my own popups with menu {, which is sometimes not practical.
There could be a new switch for /window, to add the "hide" popups item.
