How can I deduct some of the non employee compensation from my 1099 Misc. Some of that income reported was used to purchase work materials for many specific jobs?

Sure.  You should be entering all your expenses.

For self employment income on a schedule C you have to enter the total gross income you received (including the product, parts or reimbursements) and then you enter all your expenses.  Reimbursements would be an expense.  Product and parts would probably be entered as Supplies.  Or you can use line 27a Other Expenses. Then only the Net Profit (or Loss) on Schedule C goes to your 1040 and gets taxed.

Go to Business tab- then Continue
Choose Jump to Full List -or I'll choose what I work on

Then…..
Business Income and Expenses - Click the Start or Update button

Then click EDIT by the business name and the next screen should be a list of  topics,
Business Profile, Income, Inventory/Cost of Goods Sold, Expenses, Assets, and Final Details last.

Under Business Expenses, Click Start or Update by Other common business expenses
You should see the list of expenses and amounts you entered.
Then click the start or update button by the expense you want to add or edit.