how to remove severity field base on some project

[fonnnnnn]

as the topic , i want to remove some optional field on report_page and view_issue_page and the others page but based on some project.

i think that , when i go to "manage -> manage configuration->configuration report" and view at "Set Configuration Option" at the buttom of the page it can be config. But i don't know "Configuration Option" to fill in and i'm not sure that it's answer my requirement.


any advise or discuss will be appreciated.