there is no MM convention for 7-year property its either half-year or mid-quarter (The mid-quarter convention. Use this convention if the mid-month convention does not apply and the total depreciable
bases of MACRS property you placed in service during the last 3 months of the tax year (excluding nonresidential real property, residential rental property, ... and property that is being
depreciated under a method other than MACRS) are more than 40% of the total depreciable bases of all
MACRS property you placed in service during the entire year
for 7 years assets select tools, etc.
then office furniture, fixtures and appliances or in forms mode type e1.
