Go to your calendar view  settings and click on "ZynCal embed code". Copy the code presented.

In your PreciseFP template you will need to be in the template editor you'll want to add a new template element where you wish to place your ZynCal embed code.

Choose ZynCal from the Provider dropdown and paste your ZynCal embed code.
Once you click create, you will see your calendar in the template.

Your client/prospect will now be able to select a meeting with you through ZynCal directly from your PreciseFP template once you engage them with it.