Hello The velux window installed in our loft conversion is (in our opinion) fitted in the ‘wrong’ place. It is offset to the left rather than more in the middle of the ceiling. Therefore, I want it moved and re-installed in the center of the roof slope I gather some rafters needed cutting out to instal the velux window where it currently is placed. (1) Can removing and re-installing the velux window to the center be done now that some rafters are gone? (2) Have, I underestimated the extent of re-working needed? (3) Would I lose height in the loft if a re-installation job to move it to the center is done?