I tried to bind Meta+Shift+1 as the keyboard shortcut for kwin to perform "Window to desktop 1". It shows up as Meta+! and nothing happens when I press Meta+Shift+1. I also tried binding Meta+Tab and Meta+Shift+Tab to "Walk through windows" and "Walk through windows (reverse)" respectively. The key binding former works correctly, but the latter does not. When I do not have "Meta+Shift+Tab" bound and I press that combination, it seems to be passed through to the application as Shift+Tab. For Example, in Chrome browser, it is tabbing me to the previous text area in this bug report. When I do have it bound, the cursor no longer switches to the previous text field, but the key bind also doesn't perform the "Walk through windows (reverse)" action.
*** This bug has been marked as a duplicate of bug 197548 ***