Upvote:0
Vipassana meditation isn't about being mindful of as much as possible, but about developing mindfulness to the point where we can clearly see the nature of reality in the three characteristics. It doesn't matter how many or how few things you see, as long as you discern it. If you are able to discern them and maintain it, you can attain enlightenment with even a single object.
Upvote:1
Forcing awareness is a tricky concept. I would not be surprised if every practitioner of meditation has done it on occasion.
The best analysis I have found for the issue is that forcing awareness can, in theory, allow one to become more insightful and aware. However, the act of doing so admits the "desire for insight and awareness." By meditating in this fashion, it is not possible to simply let that desire pass through you. It is held on to. At the very least, this is a desire which will not pass. It can obscure that which you are looking for. At its worst, it can lead you down a false target leading you along a less ideal path.
I have found that forcing awareness in meditation can be effective for identifying illusions and assumptions, but it is less effective at actually encouraging awareness. Accordingly, in this complicated world with its many illusions and assumptions, I feel it has its place. However, the traditional approaches as advised by the other answers are more effective as these things they do best. A focus on them is wise.
Upvote:3
The mental exercise the be able to note everything is developing Concentration and Wisdom. These are tenets covered in the Anapanasati Sutta and (Maha) Satipatthana Sutta according to the Theravada Tradition.