How to reuse existing column options modal in devOps for React DetailsList control? 
Is it is custom feature developed by Microsoft?
How to reuse existing column options modal in devOps for React DetailsList control? 
Is it is custom feature developed by Microsoft?
Hi @VijayarajA-4391,
According to your description, your question is more related to sharepoint dev question, I will add sharepoint-dev tag to your thread. Thanks for your understanding and patience!
Where did you find the column options modal? Did you develop it on your own?
Hi MichaelHan,
Thanks in advance.
Please goto Backlog section in devOps, there you can see column options.(see attached image below)

Seems like that you issue is more related with devOps, you could ask your question in Azure DevOps community: https://techcommunity.microsoft.com/t5/azure-devops/bd-p/AzureDevOpsForum
10 people are following this question.