Your discussion is marked as “I have this question too” How can I do that

Simply click on the "I have this question too" right underneath the OP's post.

Calvin_BT wrote:

Yes but it can only for another members discussion

Why would you want to say you have that question too for your own post? Maybe explain better what it is you want to do and in what context.

You’re welcome.

Which I already did for you.