General
Everything the configurator can change on the radio.
Bands editorAdds, changes and removes bands; Active binds a band to the up/down keys.
Digital modes editorAdds, changes and removes the FT8/FT4 and JS8 frequencies.
DX ClusterThe telnet DX cluster server used by the Cluster app.
wfview serverIcom LAN server for wfview: turn it on and set its login.
MemoriesReads, edits and clears the MEM slots and the named channels.
File browserDownloads files from the SD card: ADIF log, screenshots, recordings.
GalleryScreen and RX recordings and screenshots, with thumbnails; AVI to MP4 in the browser.
RemoteTunes the radio from the browser with spectrum, waterfall and RX audio.
BackupSaves settings, memories, QSO log and more, and restores them after a new image.
Time editorShows the radio clock and sets it by hand, by NTP or by timezone.
Update
Installs a new app package (x6100-app-<version>.tar.gz) without reflashing the SD card