If I'm not wrong, kcm_touchpad is the component which is responsible for the configuration of the touchpad in KDE? It woud be nice if these options presents in the settings :) Now there is a way - syndaemon but it must be manually started every time or started by script.
The kcm_touchpad that we currently package does not support these features and is no longer developed upstream. There is a new one (originally called kde-touchpad-config, now renamed to kcm-touchpad by upstream) currently under review that supports the features you are asking for. Therefore, I am closing this RFE as a duplicate of the package review request. *** This bug has been marked as a duplicate of bug 1038238 ***
Sorry , I haven't noticed this bug. Thanks :)