To enable the My Giving option to appear in the Member area, simply navigate to Settings > Financial. On this page you’ll see a section titled ‘Member Area’ where you can set if you want Pledges or Transactions to appear and if you want a member to see the giving for family members as well.
If you have an online giving page you can enter the URL for this in the Website URL field, which will add a ‘Give Now’ button in the My Giving page.