The easiest way to see what you want is to look at the PDFs of your past returns. It will show you the T2125 form with the assets you have entered. 

Thank you for choosing TurboTax.

I have the same question. However TT knows the next asset number but there is no way of knowing the past assets by the order they were added. So I might add asset 29 today but next year no record exists of what asset was #29. So when it comes to disposal one has no clarity on what the state of the UCC is since the UCC per class is consolidated. 

@bcwoody The order that you entered the assets doesn't matter. As you said, for most CCA classes, the addition cost gets put into a pool, and the UCC is calculated based on the pool. When you sell/dispose of an asset, unless it's the last the last asset in the pool, the the pool will stay open and the UCC balance will persist until you do sell everything. 

If you want to track depreciation more closely, you can use a program like QuickBooks, and use accounting methods to track your assets.