Cell flickering on automatic re-execution

JupyterLab extensions
1

I’m working on extension that will execute cells below updated ipywidget. You can check the previous topic here Extension to add a new command to execute cells below selected cells

I’ve created an extension that execute cells after interaction with ipywidget. I observe that output is flickering during update. Like in the animation below

flickering

Here is list of actions:

  1. Interaction with ipywidget
  2. Cell execution
  3. Cell output is cleared.
  4. Cell execution is completed.
  5. Cell new output is displayed.

Is it possible to not clear output (step 3) when executing cells?

Related to Control when cell output is cleared - is it possible with extension?