For triggers: 
[Disk space is critically low (used > {$VFS.FS.PUSED.MAX.CRIT:"

{#FSNAME}"}%)|http://zabbix.clpo.local/zabbix/trigger_prototypes.php?form=update&parent_discoveryid=72103&triggerid=32316]
[Disk space is low (used > {$VFS.FS.PUSED.MAX.WARN:"{#FSNAME}

"}%)|http://zabbix.clpo.local/zabbix/trigger_prototypes.php?form=update&parent_discoveryid=72103&triggerid=32317]
in the Mounted filesystem discovery please, create macro for values: 5G, 10G (same as {$VFS.FS.PUSED.MAX.CRIT:"

{#FSNAME}

"}) at the expression:
(

{[Template OS Windows by Zabbix agent active:vfs.fs.size[\{#FSNAME}

,total]|http://zabbix.clpo.local/zabbix/disc_prototypes.php?form=update&itemid=72116&parent_discoveryid=72103].last()}-

{[Template OS Windows by Zabbix agent active:vfs.fs.size[\{#FSNAME}

,used]|http://zabbix.clpo.local/zabbix/disc_prototypes.php?form=update&itemid=72115&parent_discoveryid=72103].last()})<5G
It will allow to change these values for every host and make template more usability.