Letters 

Letters are created from the letters button in the Main Toolbar.   Clicking on the button itself will create a patient letter.  Using the dropdown arrow next to the button will let you pick Letter Merge or create a letter for a Referral.

Before actually creating a letter, you will need to set up one or more letters. Since letters are a kind of Sheet, setup is done in the Sheets area. Add at least one custom patient letter and one custom referral letter.  If you just copy the built-in examples, the letter setup will look similar to this

The item called "letter text" can be replaced by whatever you want your letter to say.

When you actually go to create the letter, you will be asked to choose which custom letter to use.

Just before printing, you will also be able to edit, and if a field is set to grow downward, it will grow as it is is edited.

Once created, letters can be viewed at the bottom of the Account module and in the Chart module progress notes.

The old "quick letters" tool is no longer useful now that we have the improved sheets functionality.  But if you have existing letters, you can still access them through the Main Menu, Setup, Letters.

See the Letter Merge section if you are interested in doing more complex letters.