Adding Table of Contents Block

Navigate to your post/page editing screen where you wish to add the table of contents. In the post-editing screen, click the ‘+ ‘ icon and locate the Table of Contents by Rank Math block.

+ icon ka option he nahi aa raha or nahi isha koi table aa raha hai
please mere madad kare 2 days say try kar raha hu lekin jawab nahi mil raha hai