I can also confirm that installing the Power button app will allow the machine to shutdown using the front panel button.
And WOL is working on 6.2.1 using the instructions from CtrlAltDel. This works using the dummy MAC address as defined in the bootloader, for details check his post in ths link:
Just in case the link changes here is my quick summary for enabling WOL:
Edit /etc/synoinfo.conf as root.
Search for wol_options for the lan connection required for WOL (personally I would do this for all of the LAN interfaces). You should fine something like 'eth0_wol_options="d"'. Now change the "d" to "g" i.e. 'eth0_wol_options="g"'. This will set a tick in the WOL for eth0 in the control panel power settings, repeat for eth1, eth2 etc. Also make sure 'wol_enabled_options="g"' is set to "g" not "d" and make sure 'support_wol="yes"'. Make sure WOL is also enabled in the control panel power settings.
Copy file or create a file called /usr/local/etc/rc.d/S99ZZZ_Shutdown.sh as root using the attached script. Set execute permission: "chmod +x /usr/local/etc/rc.d/S99ZZZ_Shutdown.sh".
S99ZZZ_Shutdown.sh