comment invalid element

[finishedtissue]

Hi Team,
Which is the best way to place '_comment' element in Oxygen Web Author?
PS: I tried to place ' _comment' in various places but it was throwing invalid element error.

Thanks in advance

[cosminef]

Hello,

Thank you for contacting us.
Could you specify the type of document on which you attempted to use this element?
Can you take a screen shot with the mentioned error?

Best,
Cosmin