TimeToSignUp has an option for participants to select a number when signing up:
To enable the number option for sign ups:
- Log in as the administrator
- Go to the sign up sheet
- Either A) add a new column or B) edit an existing column
- On the column setup/edit screen, if necessary, click on "Show Advanced Options"
- Choose "Number" and if desired, select a maximum number permitted for the column. The maximum is for the entire column, so if you are permitting a total of 80 participants in the column, select 80. Be sure to save your changes!