You can override ProConnect's MACRS' calculations using the following fields when entering the asset:

Current special depreciation allowance [Override] - This field will override Proconnect's calculation for bonus depreciation.

Current section 179 expense - This field will override Proconnect's calculation for Section 179

Current depreciation/amortization [Override] - This field will override ProConnect's calculation for current depreciation and/or amortization. 

These fields are the same for all of the modules: individual, s-corp, etc.  If you make an entry in any of these fields, ProConnect will use the numbers you enter and will not make calculations based upon the IRS rules.  Please take note if the overrides are entered and take more than legally entitled, ProConnect will not issue any diagnostics regarding that issue.