Admins can edit the following details for the fundraiser page:
1) Fundraiser Contact details - Name, E-mail and Address can be changed through the People > Contact tab.
2) Fundraising details - Goal, CustomUrl, Campaign Name, Reg fields and Team can be changed through People > Registrants tab. Please see Edit Registrant
3) Upload Profile photo - Can be uploaded through the People > Registrant tab.
Other details can be set as defaults for all fundraising pages:
1) Default banner hero image - Please see Fundraiser Hero Image
2) Default welcome headline and message - Please see Personal Page Defaults
Please note: Admins cannot change each individual's page text or media, rather only set defaults at the start of the campaign.