Hi, there any tip that let us send a message or reply to 2 or 3 topics at once? 

Open the 2 or 3 topics in separate tabs/windows, and copy/paste the content from one tab/window to the other.

In all seriousness though...why?

13 hours ago, kmk said:

Hi, there any tip that let us send a message or reply to 2 or 3 topics at once? 

You can’t do that for the same reason you can’t add same topic to different forums or have more than one author to a topic. 

However, you can easily make a plugin to add the reply to the “opened” topic and to the two others. It would still be three different posts IDs with same content and not same reply (post content) in three different topics. 

Edited May 29, 20213 yr by Adriano Faria

Quote

In all seriousness though...why?

I try to use support topic mode to create thread for each customer, I was thinking if I need send the same reply (it can be an announce) to those 20 customers, will be a little tricky  copy and paste one by one...

Edited May 29, 20213 yr by kmk

2 hours ago, Adriano Faria said:

However, you can easily make a plugin to add the reply to the “opened” topic and to the two others. It would still be three different posts IDs with same content and not same reply (post content) in three different topics. 

I can make a custom plugin to accomplish that task. Send a message if you're interested.