Having the address autofill or provide suggestions when we are entering the info to the address field is helpful. However, we have seen that when our donors complete the donation forms online they often forget to add if they have an Apt/Ste/Unit/Spc component in their address. Likewise, during our fundraising events when we have volunteers take donations calls, with everything that is going on they sometimes forget to ask if it's a single home or an apartment to include that information. When we have to send thank you letters or gifts, many are returning because we missed the apartment number. If we have this as a separate optional field, it would serve as a reminder to ask what type of housing it is. Or if the address search functionality could also detect apartment numbers that would be great.