Take a look at how it is done for chats.
https://github.com/NodeBB/NodeBB/blob/master/public/src/client/chats.js#L376-L398
You can probably use this same code but pass in the text input element of the shoutbox.
Hello guys,
I need to alter account/profile.tpl
with a Plugin. Particularly, I'm interested in block with age, email, location.
I want change layout from single panel with centered text on single panel with 2 columns.
Seems NodeBB should be extended for such task, maybe you have some ideas/preferences.
Good news, that we don't need to add filter, there is filter for user profile: filter:user.account
But what is about static template?