What does "self-write" on Microchip PIC16F Product Selection Tool mean?

[Choo5]

Hi all,

Does anyone know what "self-write" in the Microchip PIC16F Product Selection Tool means. URL as follows:

https://www.microchip.com/ParamChartSearch/chart.aspx?branchID=1002&mid=10&lang=en&pageId=74

 

[FvM]

Looking to a datasheet of the respective parts is a simple way to answer the question. It's about of flash write under code control, needed e.g. for bootloaders.