This client screen is used for Limited Companies.
It can be found in:
Edit | Data Screens | Notes to Financial Statements | Accounting Policies | Standard Accounting Policies | Tangible Assets - Accounting Policy (Standard)
Tick the box to add the text shown to the standard wording:
Depreciation is provided at the following annual rates in order to write off the cost less estimated residual value of each asset over its estimated useful life [or if held under a finance lease, over the lease term, whichever is the shorter].