Cross Border Tax Questions

[hobateto]

I am filling my tax return and I have issues.

I have these questions about cross border tax with full time employment in US:

For Employment expenses related to the foreign employment income
Item - Traveling Expenses: Does it cover the monthly roundtrip travels from US to Canada and back during weekends?
Item - Other Foreign employment expense: Does it cover lodging while in the US?
Item - Amount of Foreign Tax paid: Does it include FICA/Medicare item and contributions to the US state’s Cares Fund?
Item - Income exempt under tax treaty: What is that?
Item - Limit of foreign tax credit and deduction (T2209): What are these?

Another question, where we put tax advisor preparation charges? Tax Return costs?

Any step by step guide how to enter W2 line items in Ufile or a Canadian Tax software?