Editor improvements: undo, context menu on hierarchy, shell list, clear warnings…

[DP News-Robot]

With great thanks to Eugene Loza, we now have a working Undo system for Castle Game Engine Editor! You can undo / redo any action. The undo / redo menu items shows the previous/next operation description. History is trimmed smartly based on approximate size in memory. See the pull request for details. Just try it! …
<a href="https://castle-engine.io/wp/2020/10/24/editor-improvements-undo-context-menu-on-hierarchy-shell-list-clear-warnings/" class="more-link">Continue reading ?