Enable customisation on ECHARTS' legend (ALL, INV)

What is the problem or goal the end user is trying to solve or accomplish?

Users would like to be able to customize the way ALL and INV (invert) selection works on the charts' legend, especially if there are only two legends available. The two selections will not

How are they solving it currently?

This is not possible currently.

What is the recommended solution by the Customer?

Implement the option to disable the ALL and INV legend actions or the option to customize the way it looks.