Yes but I think it's only available in PyCharm Professional Edition.
It supports integration with Jupyter Notebook and JupyterLab, also enables you to visualize widgets like nglview and py3dmol  within the IDE. But you will also need to have a compatible web browser installed to display the widgets.
If you are using PyCharm Community Edition you can still use nglview and py3dmol, but you just won't be able to display the widgets within the IDE.
Update:
I misunderstood the question. Unfortunately, as I know it is not currently possible to display nglview or py3dmol widgets directly within the PyCharm IDE window. Because the widgets are rely on JavaScript to render the 3D molecule, and PyCharm  does not provide a built-in JavaScript runtime.
Most people seem to use Jupyter Notebook to display nglview and py3dmol models because nglview is a IPython/Jupyter widget.
I am wondering how to go about viewing these biomolecules within my Pycharm IDE, in the same way matplotlib will allow for plotting windows in both applications.
Is this a feature of Pycharm Pro?
Is it possible to view py3Dmol or nglview in Pycharm?