Gallery 3 Administration - Dashboard
First of all notice that all blocks/sections in the dashboard can be moved and their position can be changed by simply drag and dropping them to the desired location.
This way you can adjust the displayed information in the most suitable positions for your needs.
You can also remove each of the blocks you do not need by clicking the X button in the title bar.
The only block that cannot be removed is the Dashboard Content where you can actually add any of the blocks available for your Gallery installation.
All standard blocks are pretty much selfexplanatory regarding provided information in them. Still besides simple they can be really helpful when monitoring recent changes made to your gallery and of course news from the official Gallery 3 website.