Object Position distort After MorphTarget

[gg150190]

How to update object position after morphTarget as in attached image, when i resize door using morphtarget, its position distorted

[looeee]

Follow on from previous question here

Resize object without distortion

I have a rectangular frame which i need to scale but there is a constraint that scaling should happen either on horizontal parts or vertical parts of frame depending in x or y axis only. Meaning if i want to scale only vertical bars height then width of horizontal bars should remain fixed or vice-versa. Please suggest an appropriate approach.[window1][window2]