The phrase could refer to a few different things depending on what you're trying to do. The two most likely interpretations are:
Check your : Type OPTIONS > User Preferences tab and ensure that "Keyboard entry except script" is selected under Priority for Coordinate Data Entry . Autodesk AutoCAD LT 2019.1 Update Only
If you have the Autodesk desktop application (now called Autodesk Access) installed, it should automatically notify you of available updates for your installed software. If you want to select "Text Only" in your drawing The phrase could refer to a few different
You are looking for the specific 2019.1 update file (a "patch") to fix bugs or performance issues in an existing installation of AutoCAD LT 2019. Autodesk AutoCAD LT 2019.1 Update Only