Snapping to other objects is turned off by default.
By having this turned on you're able to easily align objects in your project. Follow the steps below to see what snapping to other objects looks like and also where the setting is located.
1. Click on the view link in the upper left-hand corner.
2. Click on the toggle switch to turn snap to other objects on or off
Drag an object/frame across the canvas and you'll see green lines stretching the height and width of the canvas. They appear when they detect points from another frame.