Photo Paint Version X5 and later - In the Bitmap Fill box, the 'Scale Bitmap to Fit" option is gone. I can't figure out how to do it in later versions of Photo Paint

In Corel Photo Paint, there used to be a "Scale Bitmap to Fit" option in the Bitmap Fill box. I can't figure out how to get this back in X8, 2019 versions. I am having to go back to X4 to fill bitmaps using the scale feature. Does anyone know how this is done in the latest versions of Photo Paint?