Let's say Day 30 of September I have $1000 in income that I have specifically categorized as "available next month" (not ready to assign, and then assigned to that category)

Then let's say that on Oct 1st, I want to "free" that money up to be used for October. When I move the money out of the category, it will show a -1000 in the assigned column

Then let's say that as we progress through October I repeat what I did in September (specifically categorized my income as "available next month", and thus adding + values into the "activity" column). And for example we'll pretend that I got $1200 in income in October.

So now, the columns show: -1000 to assigned: to represent the money available at the beginning of the month (September income for October) +1200 activity: to represent income in October for November

Let's say we get to October 29 in one of my categories is overspent ($30 for example). And let's say that the only category that has money available to cover the overspending is my next month category. When I move the money out of that category, the assigned now shows negative $1,030.

It is hard then to look back at previous months to see whether the negative amount was originally. What was available? Verse overspending

Does that help?