Ability to edit content in the "checkout process"

I realize we can edit the content in blue at the top of each page, but I would like the ability to also edit some of the other content. Some guests, who are paying with Zelle, Venmo, or check find it confusing when #3 of the "What to Pay" section of the form mentions "a Security Deposit will be due x# of days prior to arrival", because I include the security deposit as a line item on the booking total for guests that are paying with those methods. So technically for them it's due now, and not 2 days prior to arrival.