As discussed with Ryan & Cindy, We are using '6Clicks' Risks Registers Dev API. However, we have found out that there are few columns/fields missing and Ryan has confirmed back saying they are missing and needs to raise a 'Feature requests' from our end. Here are the missing columns we needed into this API are as follows:

'Access Members',
‘Control Name 1’ ,
'Control Owner'
'Control Owner 1'