Petty Cash Account or out flows

Is there a way to maintain petty cash account? like Office expanse. I have created a cash account but how do I manage it in the existing system?
Should I Add Vendors? Items? or Category?? Its confusing.
If I add Items, (like tea, water bottle etc) it will be shown while creating Invoice (which I don't want).
If I add Vendors, (like newspaper guy, food delivery etc) it will be a mess while creating bills.
If I add it as a category(which I already did naming Office Expanse). How will I use it to show outflows from petty cash.
In flows can be easily shown from bank to cash transaction. How to see detail view of outflows from cash account without creating a mess??

Unfortunately, without creating items, vendors, categories, etc. it's not possible to handle it.