Thank you for reading the question.
I try to import the css and js files by modifying the mst files on the Node-RED.
The css file works normally, but the js file has problems with the order of execution.
In the js file, some HTML of the Node-RED is modified using jQuery.
So I want to know a function about situations where all dashboards are loaded to modify HTML with jQuery. (A function like window.onload, document.onload)
I have confirmed that it can be implemented using js and HTML of that node by creating a node, but I want to know how to modify the mst, not how to install the node.