Power Query - update particular columns

hi,

I need to creat quite complex table with Power Query. That final table has many (up to 40) columns. The problem is that I need to place few extra columns with advance formulas into the final table (after Power Query). Those columns are not next to each other.


Is there any way to refresh that table without loosing those extra columns with formulas?

an exaple:

PQ source column	PQ source column	extra column, added ater PQ, with formula	PQ source column	extra column, added ater PQ, with formula	PQ source column	PQ source column