Business Expense Deductions - unsure how to categorize (no place for tools?, what about documents that I bought? or, very expensive software?)

So, I have a variety of types of expenses associated with my small business.  But, I am unsure where to list these in TurboTax.  

I have recorded monthly profit and expense reports spreadsheets.  However, I did not categorize the expenses.  

The reason why I ask is I am currently using TurboTax to enter business expenses.  I see a category for "Supplies" - but the examples indicate things such as pens and pencils and perhaps printers.   There is also "Office Expenses" - would I list my tools, cables, engineering documents and very expensive software that I purchased  in this category?

In my notes I have these categories (thus far)

1. Office Supply   -   pens, pencils, paper
2. Advertising - flyers I create and mail
3. Lab Tools  - screwdrivers, pliers, soldering irons
4. Lab Equipment - bench-top laboratory equipment - and related cables
5. Engineering Documents - some document are hundreds of dollars to buy
6. Engineering Software - about $10,000 this year (two sub categories - yearly software maintanece and license purchase of new software)

Any help with guiding me where to place these deductions would be most appreciated.

Thanks