Hi, Has anyone ever built a plug-in that allow us to populate the doc

The "please wait" process is certainly possible.

In your process, on submission of a form, chain in to a synchronous sub process that lands on another user input task.

In the meantime, the parent process runs in parallel and does what it needs to. When the processing is completed set a Boolean value to true, which is initialised in the child process by reference as false.

The user is now looking at the form, which you could automatically submit using some JavaScript (will be on the forum somewhere) after say 10 seconds. Every time it submits it loops back around until the Boolean value is set to true which after submission of the form is checked on an XOR. We also terminate the looping after a certain amount of time by setting a counter.

When the processing is ready we then display a link to take the user to the process dashboard as this is what we have used it for in our example.

The "please wait" process is certainly possible.

In your process, on submission of a form, chain in to a synchronous sub process that lands on another user input task.

In the meantime, the parent process runs in parallel and does what it needs to. When the processing is completed set a Boolean value to true, which is initialised in the child process by reference as false.

The user is now looking at the form, which you could automatically submit using some JavaScript (will be on the forum somewhere) after say 10 seconds. Every time it submits it loops back around until the Boolean value is set to true which after submission of the form is checked on an XOR. We also terminate the looping after a certain amount of time by setting a counter.

When the processing is ready we then display a link to take the user to the process dashboard as this is what we have used it for in our example.