I cannot change the window/center level with left click

[lassoan (Andras Lasso)]

Mouse modes were changed in Slicer-4.11, see this topic for more information:

Adjust Window Level is not working (nightly release 4.11.0)

HI Joost, Mouse modes have recently changed. To window/level you need to switch to W/L mode by clicking on the button on the toolbar that is activated in this screenshot: [image]