Use LOWER CASE letters a to z or numbers ONLY

for a period use a capital P

for a dollar $ sign use a Capital D

height of letters

with the height set at 30 you can get 12 lines with this much on a line happy birthday to you
remember to use Lower Case letters only

Background URL fill for letters if wanted

for solid color letters enter color here or for a background leave white in

for larger letters use less inputs
if you want a space between 2 lines then put your cursor in a input between them and hit the spacebar one time or to move the text down do the same thing