[Figure 2] The modo timeline offers more features than you might think. 

You'll see that in the Animate tab, the full interface doesn't look that much different than the rest of the program, except for one area. Take a look at the modo timeline at the bottom of the interface, as shown in Figure 2.

[Figure 3] The first frame value for the modo animation timeline (left). [Figure 4] The last frame value for the modo animation timeline. 

On the left and right of the timeline, you'll see double sets of numbers, which might appear confusing at first. Figures 3 and 4 show these numeric areas. What are they, you ask? You've probably clicked on them and were not quite sure how they work.

[Figure 5] The full modo 301/302 timeline with first and last frames set. 

The numbers on the left represent the first frame of your animation timeline. The numbers on the right represent the last frame of your timeline. These two values are the top set of numbers. Figure 5 shows the timeline in full with the first frame set to 0 and the last frame to 120.

[Figure 6] Using the modo timeline, you can set a preview region. 

The bottom set of numbers in the left and right regions represent the preview. So, for example, your full animation is 300 frames, or 10 seconds if you're rendering at 30 frames per second. But let's say you only want to preview about 40 frames in the center of your animation. You can set the preview value by entering in the numbers. Figure 6 shows the same timeline with a 300 frame animation and the preview set to 40 frames in the middle of the animation.

Take a closer look at the bottom of the timeline in Figure 6, and you'll see a small scrub bar that reads 40. This is the preview bar, and not only can you click and drag it to view 40 other frames in the animation as a preview, but you can also simply click and drag ends of the bar to change the value. Double-clicking on either end jumps the value to its starting and ending values.