a disposal of a class 10.1 asset should have no recapture or terminal loss. You are supposed to put 0 in column 8 I had to put 1$ to make it work. Is this correct?

If you put the actual proceeds on the "T2125 asset details" screen, the program will calculate the current year's CCA as allowed (1/2 rate in year of disposition) and will not determine a terminal loss or recapture.  There should be no entries in column 8 of the T2125CCASummary if the asset was originally set up properly as a Class 10.1.