if (manager.getShowingGroup() != null) {
multiSplitContainer.addContent(content);
} else {
if (content == null) {
DockedContainer dockedContainer = (DockedContainer) descriptor.getToolWindowContainer();
multiSplitContainer.removeContent(dockedContainer.getContentContainer());
animate = false;
if (multiSplitContainer.isEmpty()) {
animate = true;
content = null;