If there is Key+Drag for size, there should be also an option for Opacity and Flow, for a faster workflow, specially at full screen or, canvas only modes. Reproducible: Always
A heads-up, on canvas display to manipulate opacity, size and flow is a 2015 funded stretch goal. Dmitry still has to get started on it, but it's already planned: https://krita.org/en/item/the-votes-are-in-2/, https://phabricator.kde.org/T127.
Git commit 5edaa336d4999c5db77958cc2e9970a6cfc995f5 by Dmitry Kazakov. Committed on 05/08/2016 at 09:39. Pushed by dkazakov into branch 'master'. Merge the Heads-up-display for the brushes into master Now the popup palette has a special HUD that is used for controlling specific brush properties. Every brush engine has its own properties, and you can choose which ones you want to see in a special settings dialog in the HUD itself. Fixes T127 Related: bug 322835 Auditors:#krita_manual,#krita_website_and_translations Differential Revision: https://phabricator.kde.org/D2289 http://commits.kde.org/krita/5edaa336d4999c5db77958cc2e9970a6cfc995f5
I think we consider the bug as fixed now :) The opacity and flow can now be edited in the HUD widget :)