Hello!

I'm looking to create a custom date filter for some entries. I have a lot of transactions for multiple loans and I'm looking to create a custom date filter for the following case:

Let's say that we start to receive our monthly amounts back. At the end of the March our balance shows that we have $100. At the end of the April our balance shows that we have $200 and so on.

I'm willing to create a custom date filter and based on selected value, this application to sum all transactions until selected value. Currently, I have two possibilities: date range or monthly.

How can I achieve this?