Here are a couple of how to find stuff hints.

1. Search box at the top of the left column (with magnifying glass and the word search in it) - Try estimate and hit enter

2. If you know where you want something to end up, go to Check Return - Find the box or line and RIGHT CLICK on that box or line and it generally will take you direct to the input.

3. #1 above also works if you enter the form you are looking for.