XF 2.2 How to create a specific widget that only shows up in specified node ?

[NandorHUN]

Hi!
How can I change the display condition for a widget so that it will only shows up in a specified node , category?

 

[Paul B]

$xf.reply.containerKey == 'node-1'

 

[centomegabit]

Sorry for bumping but, if I want to show up a widget in multiple nodes like 1,15,16 is it possibile or I've to have a specific widget for each node?

 

[Paul B]

in_array($xf.reply.containerKey, ['node-1','node-2'])

 

[centomegabit]

Thank you very, very much!