When using the clone and heal options of the revised remove tool, Lightroom automatically picks a source area as previously, however there is now (Lightroom Classic v13.3 on Windows 11) no way to change this manually. The drag handle doesn't appear when hovering over the source area. The tool overlay is visible, I can see both the source area and destination. The destination area can be moved and dragged, the handle appears when the cursor is over this, but not for the source area.