The new way is a bit more complex, but the result is that you get a nice aggregation in the drop-down list of the Aggregation widget, with nice text boxes for the parameters and expressions.
In the Size drop-down list, select the smallest value (256) — the lite UART actually has only four 32-bit registers, and hence only requires 16 bytes of address space, so 256 bytes is plenty.
That is about the same drop as at a similar stage in the economic downturn of the early 1980s, and a bit less than the 1.5% decline in the early 1990s.