Not sure what you mean by verify - but if you mean can you bulk-edit issues (eg. bulk assign) then you should:
^ This allows for one bulk edit for one value - if you need to bulk apply multiple values (eg. assign 100 issues to 100 different users), a simple option is to be a Site Admin and use the CSV Importer. See this page for more instructions, specifically under the title "Updating existing issues"
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