[Stiofan]

@matrixd i just released our FREE plugin to do this: https://wordpress.org/plugins/move-bbpress-multisite/ 🙂

[Stiofan]

i had to do this today for a few hours, only hidden with CSS and message displayed but might help someone:

// put forum in read only mode
add_action('bbp_theme_after_reply_form','gd_bbp_read_only_mode');
add_action('bbp_theme_after_topic_form','gd_bbp_read_only_mode');
function gd_bbp_read_only_mode(){

	?>
<style>
	fieldset.bbp-form{ display: none;}
</style>
	<div style="background: red;color: white;"><h2>The forum is currently in read only mode while we perform some maintenance, this should only take a few hours.</h2></div>
<?php
}

[Stiofan]

Hi Kostas,

I am currently making a plugin to move/copy/delete bbPress install in multisite.
Would you be interested in purchasing it when ready?

Thanks,

Stiofan