Using Expiration Dates with iP8 for Mac

Seeing that here are already 1Password members with the same need as I have identified, once I started to dig deeper into 1Password, as I'm moving now all my passwords and safety relevant data into 1Password. After I tried it again now, I found the with Version 8 now it really becomes very workable, especially the Windows in iOS Versions are great. Basically can satisfy all our needs, just I found there two things are lacking. First, I also see that this expiration date field is missing. It is missing the possibility to add an expiration date into any of the categories, unless it is already pre-written there. A date field can be created, but it is not recognized as an expiration date. This should be an additional item, which could be selected to be created and then later monitored by the watchtower, if the date is going to expire. It will add this item to take action for renew. This is necessary for many kinds of cards and which are not belongs to Credit Card, Passport or Driving License only, such as Residence Permit, Visa aso.
In additional I found an issue with, that there are many categories, which is great, but I couldn't find a function, that allows me to add new categories, such as ID-Cards, Visa, Permits, aso.
It would be great to have these two functions, free choice of creating new categories and the function not only to add a date, but also an expiration date, which is monitored by the Watchtower report. Please report this to the developer team, hope they can hear the voice of the 1Password members. Thank you ！