It works on IS-DOS! I have selected VT52 as the terminal driver, and redefined some keys.
Yes, I know ... as I said a few messages ago, I used it on IS-DOS in the 1980's to write 3 games!
I also posted my copy of VEDIT v2.31, customized for the Enterprise,
here earlier this year.
It allows the edition of very big files without memory paging, taking chunks of the file from disk, but I have still not tried this option.
It does this automatically when it needs to, you don't need to set any specific options (except to install it properly).
I have downloaded it from here.
Yes, IIRC that's where I downloaded a copy of v2.33 many years ago, when Ted Green released it as freeware back in 2008.
I still haven't set it up for the Enterprise, yet, but I'll have to do so soon.
On IS-DOS, execute: INSTALL VPLUSZC.SET VEDIT.COM
First, you will need to configure the program.
That works, but you really need to do a bit more than that if you want to customize it to take full advantage of the Enterprise's capabilities.
Personally, I created a custom terminal (because VEDIT's VT52 doesn't use reverse-video, i.e. using a 2nd palette), and then I hacked VEDIT v2.31 to support using the Enterprise's function keys and to automatically select IS-DOS's fast video driver.