It will be nice if some option will be added to tags creation via LLD.
For example we creating hosts from VM discovery and want to add tags to hosts.
In some case tag value can be empty and Zabbix should skip this tag. For now you will got empty tag. And if regsub or other function was used - you will got ugly empty tag.
In some case tag can be missed and Zabbix should create such host without tags. For now host will be not created and you got error in LLD.