Start node red with command

Hi everybody.

I have a SIMATIC IOT2040 , I am trying to star node red with command

node node /usr/lib/node_modules/node-red/red & but the IoT give error

no possible found  dir  /usr/lib/node_modules/node-red/red

I am using image 3.21 and its no possible to start node-red in this way

The node-red by web explorer begin yes, but is not possible add any node-red contrib 

I see manuals with use image 2.6

In the last version doesn`t add modules to node-red? if yes, please how to do it?

Thanks

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Split from Simatic IOT 2040 - Node-red