I’m using file backups only and I always set it on the server side.
My default directories to backup:
A:|A/follow_symlinks,symlinks_optional,share_hashes,optional;B:|B/follow_symlinks,symlinks_optional,share_hashes,optional;C:|C/follow_symlinks,symlinks_optional,share_hashes,optional;D:|D/follow_symlinks,symlinks_optional,share_hashes,optional;E:|E/follow_symlinks,symlinks_optional,share_hashes,optional;F:|F/follow_symlinks,symlinks_optional,share_hashes,optional;G:|G/follow_symlinks,symlinks_optional,share_hashes,optional;H:|H/follow_symlinks,symlinks_optional,share_hashes,optional;I:|I/follow_symlinks,symlinks_optional,share_hashes,optional;J:|J/follow_symlinks,symlinks_optional,share_hashes,optional;K:|K/follow_symlinks,symlinks_optional,share_hashes,optional;L:|L/follow_symlinks,symlinks_optional,share_hashes,optional;M:|M/follow_symlinks,symlinks_optional,share_hashes,optional;N:|N/follow_symlinks,symlinks_optional,share_hashes,optional;O:|O/follow_symlinks,symlinks_optional,share_hashes,optional;P:|P/follow_symlinks,symlinks_optional,share_hashes,optional;Q:|Q/follow_symlinks,symlinks_optional,share_hashes,optional;R:|R/follow_symlinks,symlinks_optional,share_hashes,optional;S:|S/follow_symlinks,symlinks_optional,share_hashes,optional;T:|T/follow_symlinks,symlinks_optional,share_hashes,optional;U:|U/follow_symlinks,symlinks_optional,share_hashes,optional;V:|V/follow_symlinks,symlinks_optional,share_hashes,optional;W:|W/follow_symlinks,symlinks_optional,share_hashes,optional;X:|X/follow_symlinks,symlinks_optional,share_hashes,optional;Y:|Y/follow_symlinks,symlinks_optional,share_hashes,optional;Z:|Z/follow_symlinks,symlinks_optional,share_hashes,optional;
My default exclude list:
:\$Recycle.Bin;:\hiberfil.sys;:\MSOCache;:\pagefile.sys;:\swapfile.sys;:\System Volume Information;C:\$GetCurrent;C:\$SysReset;C:\$Windows.~BT;C:\$Windows.~WS;C:\PerfLogs;C:\Program Files (x86);C:\Program Files;C:\ProgramData;C:\Users\:\AppData\Local\Google\Chrome\User Data\Default\Cache;C:\Users\:\AppData\Local\Google\Chrome\User Data\Default\Media Cache;C:\Users\:\AppData\Local\Microsoft\Windows\Explorer\thumbcache*;C:\Users\:\AppData\Local\Microsoft\Windows\History;C:\Users\:\AppData\Local\Microsoft\Windows\Temporary Internet Files;C:\Users\:\AppData\Local\Microsoft\WindowsApps;C:\Users\:\AppData\Local\Mozilla\Firefox\Profiles\:\cache;C:\Users\:\AppData\Local\Mozilla\Firefox\Profiles\:\cache2;C:\Users\:\AppData\Local\Packages;C:\Users\:\AppData\Local\Temp;C:\Windows;C:\Windows.old;
This is populated to all clients and then I adjust per client if needed, again on the server side only.
And one more thing about that installer screen you mentioned - there is some weird bug there, in order to get it working like I described, you have to close it without confirming anything, just hit the window close icon.