How do I make an object (layer) disappear, and then reappear at a later point on the timeline?

[BobSynfig]

A little search with the dedicated function helps
https://forums.synfig.org/search?q=hide show

Hide and reveal images during an animation [SOLVED]

Good afternoon, I have a terrible problem. I don’t find how hide and reveal images during an animation. I add an image and it remains on my work space in each frame, Does it is possible hide images in frame where I don’t need it?