I want to make for example edge slide by 0.5 unit. How can I achieve this ? I don't want to use in edge slide fraction (from -1 to 1), instead real slide value. I found that in previous versions of Blender there was in Edge Loop Proportional option, but I can't find it in newest Blender :/
http://wiki.blender.org/index.php/Dev:Ref/Outdated/Release_Notes/Modeling/Meshes/Advanced_Tools
From old manual:
Pressing P while positioning the loop cut will enter non-proportional mode, which keeps the shape of one end of the faceloop regardless of where the cut is positioned. Pressing F while in non-proportional mode flips which side of the faceloop is used to determine the shape of the cut.
Maya have this, Absolute Value. http://knowledge.autodesk.com/support/maya/learn-explore/caas/CloudHelp/cloudhelp/2015/ENU/Maya/files/Edit-Mesh--Slide-Edge-Tool-htm.html