Say I have a Google Sheet with customer data. One column is status. When I log a new customer status is new. When I close a deal I want to change to status acti

Say I have a Google Sheet with customer data. One column is status. When I log a new customer status is new. When I close a deal I want to change to status active, but: 1. I do not want to type "active", I want to select it from some options. 2. I want to check that customer has paid, so I need to hook this to a payments sheet or service. 3. I want to validate all input is valid before activating a customer, for example, I need a scanned image of a document to have been uploaded. 4. If all is good, I want to change the customer to active, but when I do it: 5. I want to create a log so I know when and who sold this account, so I can later automate sales commissions. 6. I want to send an email to the new customer, including login credentials. 7. Things I have not yet imagined but will surely pop when my business grows. Can I do all this with Stacker? Merely using a couple of Google Sheets as my back-end DB?