Features got removed with later firmware on certain devices that are low spec, including the original beryl. You either go back to v3 firmware or install them manually
From v4 release notes
"Limited by CPU performance and storage space, this version firmware also does NOT include Network Storage fature. (Allow users to install via plug-in after exroot)"
I too have the beryl MT-1300 and find it annoying these basic features which were once installed have been pulled. I'm pretty sure Tor isn't installed either however the product page still suggest you can use tor. Well I suppose you can if you downgrade firmware to v3.x
I am pretty sure I do have a very early v4 fw release somewhere which included some features that are no longer available but those firmware files are no longer available.
For any glinet devs reading. If you can install them again manually why can't we have them pre installed as an optional firmware build? Surly they can't be too unstable to run if the advice of the forum staff is to re-install the packages anyway?