Steps to reproduce:

1. Monitoring > Latest data
2. Select items from multiple hosts and press Display graph
3. Choose View as "Values"

Result:
Table headers show items names without host information. Unable to understand which host an item belongs to. See screenshot.

Expected:
Table header should include host name or a way to distinguish items should be provided.

Reference:
https://www.zabbix.com/documentation/4.0/manual/introduction/whatsnew400#accessibility