You indicate your interest in being a Mission Assistant in your member profile, or Account Settings.
To access your Account Settings, log in to VPOIDS. Once logged in, click the Account Settings link at the top right of the page.
On the Account Settings page, look for the "Availability" section on the bottom right of the page.
In the Availability section, look for the check box labeled, "As Mission Assistant." Check this box to indicate that you are available as a Mission Assistant, or un-check the box if you are not available or interested in Mission Assistant opportunities.
Be sure to save your changes using the "Save your changes" link at the top of the Availability section before leaving the page.
Please note that any member can indicate an interest in being a Mission Assistant, even current Command Pilots.