How to add an object to all layers at once in Inkscape(0.91)?

Question

Graphic arts

Hello, I'm using Inkscape(0.91) to create a frame by frame animation. Each animation frame on its own layer, it became necessary to add an object to each frame, however, I have 25 frames, and there will be even more, adding to each layer is not very convenient, there must be a way to speed up this process.