[Solved] I can't get comment reply button visible

If the reply button is not visible for post types like "Post", "Page", etc. you should enable the "threaded (nested) comments X levels deep" option. 

The option is located in the Dashboard > Settings > Discussion admin page. 

Turn on this option to allow visitors to reply to other comments inline/nested. 

Then from the drop-down box, select the number of X levels deep (maximum of 10 levels) you will allow for nested comments.

Please note: some themes need to be specially coded to properly display threaded comments.

We suggest using a maximum of 3 levels deep. Anything higher and the theme layouts may not work as expected.