ag-grid Multi Column Sort functionality (React)

I am looking someone who can quickly create some sample about ag-grid multi column sort functionality, viewing multi sort functionality samples with ag-grid here: [login to view URL], you can pick any sample from there with sample data. Below is needed: 1- Make sure, one of the column contains custom checkbox only and it is sorted always like: a. All uncheck rows are on top and Checked are at bottom, this column works like locked sorted column by default like office Excel. b. When user do single click on any other column in ag-grid, it always sort on the top of sorted behavior explained in point (a), It is same as multi column sort functionality in ag-grid 2- When user click on checkbox of any unchecked item on top, It should follow the sorting behavior explained in point(a) and move down with other checked items