where is $HOOK_LEFT_COLUMN?

[caracol]

Hi,

 

when I´m on category page, there is one left column.

 

It´s shown in the page header.tpl

<div id="left_column" class="column col-xs-12 col-sm-{$left_column_size|intval}">{$HOOK_LEFT_COLUMN}</div>

where is definded that HOOK_LEFT_COLUMN?

I´d like to do some modifications there.

 

Thanks very much.

[caracol]

Ok, I found the module.

It just needed to be updated and now I can see the configure button.

 

the module is called (sorry, in spanish) "Bloque navegación por facetas"

 

Thanks very much.