Data entry where you begin entering your data as it is collected.  Your user preferences are modifiable using the gear icon to the right.  They determine what choices are displayed in your drop down boxes, and the order they are displayed in.  Default order and which collection attributes to display be personally set by the user.  You can also change the display mode to tablet view, one line grid view, or form view using the icons immediately to the left of the user preferences icon.

Once these preferences are to your liking, data entry can begin.  You will need to make your selections on the initially displayed attributes (Group, Category, etc) and select "save" to display more attribute choices that you can fill out to enter a record.