You can create a Donation campaign by clicking on the CREATE NEW button on the Admin page and going to the Basic Campaigns tab and choosing the Donation template. Then from the Design Campaign tab, fill the details in each tab:
Landing Page -> Donation Levels & Questionnaire Form -> Receipt Email -> Settings
You can add donation levels and specify amounts, as well as set up a questionnaire form for charitable purposes.
You can always preview your campaign by clicking on the ‘VIEW SITE’ before publishing, and then click on ‘PUBLISH’ button at the top right corner of the campaign to go live.