1. A method for editing an electronic presentation, the method comprising: providing an electronic presentation editing interface for editing an electronic presentation, wherein the interface comprises: a digital canvas comprising a plurality of canvas objects in a plurality of canvas layers; a digital timeline comprising a plurality of timeline objects, a time axis, and a graphical indicia on the time axis that represents a pause in the electronic presentation, wherein: each canvas object in the plurality of canvas objects is linked to a respective timeline object; a position of a timeline object on the digital timeline is indicative of a time and a canvas layer that a linked canvas object is displayed on the digital canvas; the position of the timeline object includes a first time coordinate on the time axis indicative of when the linked canvas object appears in the digital canvas, a second time coordinate on the time axis indicative of when the linked canvas object disappears from the digital canvas, and a layer coordinate indicative of a canvas layer in which the linked canvas object appears in the digital canvas; the graphical indicia extends over all layer coordinates that are displayed in the digital timeline; and the digital timeline further comprises a marker on the digital timeline, wherein a position of the marker is indicative of a time corresponding to a current view of the digital canvas, and wherein when the position of the marker coincides with the graphical indicia on the time axis, each canvas object linked to a timeline object that coincides with the position of the marker is paused.
4. The method of claim 1 , wherein: the digital timeline further comprises a layer axis; and the positions of at least two timeline objects in the plurality of timeline objects have different first and second time coordinates along the time axis and a same layer coordinate along the layer axis, such that the two canvas objects linked to the two timeline objects appear in the digital canvas at different times and in the same canvas layer, and wherein the layer axis corresponds to a front to back ordering of the plurality of canvas layers in the digital canvas.