Workspace workspace = workspaceController.getWorkspace();
Page page = workspace.getPageNamed("Main");
FactoryManager manager = workspace.getFactoryManager();
Block newBlock;
newBlock = new Block(workspace, "loop", false);
FactoryRenderableBlock factoryRenderableBlock = new FactoryRenderableBlock(workspace, manager, newBlock.getBlockID());
RenderableBlock renderableBlock = factoryRenderableBlock.createNewInstance();
renderableBlock.setLocation(100, 100);
page.addBlock(renderableBlock);