Markers Sync for After Effects has several advanced features for CC2017 and later versions, foremost being the automatic synchronization of markers within different compositions. Multilayer and marker synchronization is also included without selecting any composition layer.

Froggy Team – Markers Sync Features

• Work with many layers: You can place various images and videos on top of each other.
• Intelligent layer control: You can decide which layers to display or hide or let all of them move in unison.
• Combine things easily: You can combine different items with a simple click or a unique key.
• Change how fast things happen: Events can be sped up or slowed down, and you can control when the sequence commences or reaches a halt.

Markers Sync Documentation

Image: Sync markers across multiple comps