Once logged in to GB1900 click "Transcribe" in the top menu bar and it should allow you to start adding new pins.
Click on the map under the first letter of the text. A transcription box will appear. Enter the text as it appears on the map. You can also add any alternative names, memories or make any extra comments you have about this place by clicking the relevant button. When you have finished click the "Done" button to submit. If you make a mistake during transcription just click on the cross in the right hand corner of the transcription box to cancel, however you cannot edit a transcription once you have submitted it.
N.B. You can confirm existing transcriptions without having clicked on “Transcribe”.