Roundabot for vertical photoframe

I have a lot of vertical images and I want to put them in the Photo frame rounded 2 (Photo objects). If I rotate the frame, even the bitmap will be rotated and doesn't suit. Aspect ratio is always locked in the Fill tool, isn't it? However, I couldn't find any other solution, but

1. to rotate the image in an other editor,
2. import the rotated image,
3. delete it, then
4. draw it from the Bitmap gallery.

It is too much roundabout for this simple thing. Is there any simple way to put a vertical bitmap into that frame?

Rotate the Photo frame rounded 2 90 degrees (landscape to portrait)
Click the picture - click the fill tool.
Hold CTRL and rotate the image 90 degrees (landscape to portrait) using the fill handles
Drag'n'drop your new (portrait) picture into the frame. Done ;)

Thank you, it was much easier!