Selecting account a path when connecting to server

I tried the solution proposed by @Kyle Gagnet

I edited the extension and changed this code:
.vscode\\extensions\\rocketsoftware.rocket-mvbasic-2.7.1\\out\\online\\online.js

            let accountName = server.account;
            // if (datasource.isUV()) {
            //    accountName = "XDEMO";
            //}
            
            if (server.account === undefined || server.account.length === 0) {
                accountName = yield vscode.window.showInputBox({
                    placeHolder: "Please enter account",
                    accountName: true
                });
                if (accountName === undefined) {
                    return;
                }
            }

I added a field "account" to the server definition in JSON. However, the field server.account is empty. Is there a mapping file so I can add new data to the JSON config?

            let accountName = server.account;
            // if (datasource.isUV()) {
            //    accountName = "XDEMO";
            //}
            
            if (server.account === undefined || server.account.length === 0) {
                accountName = yield vscode.window.showInputBox({
                    placeHolder: "Please enter account",
                    accountName: true
                });
                if (accountName === undefined) {
                    return;
                }
            }

I've found it.

In the function getServers:

        if (!uniqueServers.some(uniqueServer => uniqueServer.name === serverName)) {
            let uniqueServer = new fsprovider_1.Server(serverName);
            uniqueServer.address = server.address;
            uniqueServer.username = server.username;
            uniqueServer.password = server.password;
            uniqueServer.account = server.account;
            uniqueServer.port = server.port;
            uniqueServers.push(uniqueServer);
        }