That should be no problem, but the plant will need pruning as opposed to shearing. The best strategy would be to allow the plant to grow to a foot or so tall (probably need to stake it while young). Once you remove the end of the stem, it will grow lateral/ side branching, if it hasn't already branched on it's own. When each branch has 3 mature leaves, cut the branch back to 2 leaves, like this:

This will force new branches to grow in leaf axils, just as you see in the image above. As soon as the first leaf on each new branch opens, remove the mature leaf. Using the image above as a guide, you can see the new branches growing because I removed the tip of the cutting. As soon as the first leaf on these nascent branches starts to open, you'll remove the mature leaf by snipping through the leaf stem (petiole) somewhere between the leaf blade and where it attaches to the stem. Do not pull the leaves off as it will damage the row of dormant buds immediately above the leaf's attachment point.

How the cutting in the image will progress: From the single branch or stem, 2 branches will grow. When any new branch gets 3 leaves, it gets pruned back to 2 leaves. Removing the branch tip forces 2 more branches to grow; so, from 1 branch/ stem, you get 2 branches, each of which produces 2 new branches. 1: 2: 4: 8: 16: 32: 64. This keeps the plant as dense and compact as possible, and gives you a very large number of pruning opportunities to either reduce the size of the plant or simply keep it small and compact indefinitely. If you're successful at keeping the plant viable, you'll be faced with the choice of potting it up (to a larger size pot) as the root system grows, or repotting it, which includes bare-rooting, root pruning, and a change of grow medium. The later is much to be preferred over the former as it removes all limitations imposed by root congestion (being root-bound). Potting up only removes a fraction of that limitation, and ensures that the congestion in the original root mass remains a limitation forever, or at least until a human gets his/her hands into the roots and corrects the congestion.

I've been practicing bonsai for about 40 years. I wrote this as a guide to Long Term Care of Woody Plants in Containers. It has abundant information which can help you and your relationship with plants you want to keep for the long term.

Al

You can prune this tropical vine all you want, but if you want it to FLOWER, you will have to let the vine grow; the simple solution is to train it on a hoop. One about 30" in diameter should be fine.