Please do not divert topics with unrelated questions. This question did not pertain to the topic where it was posted, so it was moved to its own topic, where it can receive more attention.
No, not as you show. Manager’s tax functions work on the basis of offsetting input and output taxes, as with typical VAT schemes. So, whether you are buying or selling the inventory item, the same tax code applies.
When items are subject to different tax codes, you can define and select the tax code independently for each inventory item. For example, food items might be subject to a different tax code than clothing, and the tax remittances might go to different tax authorities. So you would select different tax codes for milk and shirts. But you would not select different tax codes for the income and expense accounts. Those accounts control where the non-tax portion of any transaction is posted. the tax code controls where the tax portion goes.
You can, however, set tax codes for income and expense accounts that are not part of larger, hard-coded functionality—like Billable time - invoiced. So you could set up your custom income and expense accounts so everything going into them gets a specific tax code applied. Be careful, though, that you do not end up double-taxing line items.