I have a survey wherein a user selects their personal "Surveyor ID" from a select_one list of possible surveyor ID's (e.g. 13 - surveyor name) as well as the survey date. Further down the form I have a text question wherein the surveyor can record the presence of a fish nest (i.e. a redd). This is done by assigning a number to the redd. Our typical protocol for assigning numbers is to use your personal Surveyor ID plus a six digit date and then a two digit number. For example, if I was conducting a survey today and I observed a redd I would assign the first redd I observe with the following value: 13-092121-01. The second redd would be: 13-092121-02. My question is, is there a way to populate the "Redd number" question with the default answer of surveyor_id - survey_date - ## (i.e 13-092121-##), where the surveyor would only be inputing the last two digits?