* add executeUpdateElementById api #648 ([5c896bf](https://github.com/Hufe921/canvas-editor/commit/5c896bf95814c6ef2956221763e7df560b3fe98a)), closes [#648](https://github.com/Hufe921/canvas-editor/issues/648)
* add override internal drop function api #643 ([ec7e076](https://github.com/Hufe921/canvas-editor/commit/ec7e0760c113711fdafc13374ea521605308f867)), closes [#643](https://github.com/Hufe921/canvas-editor/issues/643)
* move control position by dragging #456 ([cdb0788](https://github.com/Hufe921/canvas-editor/commit/cdb0788dfcecadb70e680eb40a31551e0e096401)), closes [#456](https://github.com/Hufe921/canvas-editor/issues/456)