Thanks to images off cellphones, etc I find it difficult to resize images to fit a box using the arrow keys. This is because the dimensions are large and the resolution low.
WORKFLOW :
I place an image and it comes in at 4.732% (for example).
I need to make it bigger to fit - but 5% is not big enough, and 6% is too big.
Now I need to enter numbers into the fields - or scale using the image boundary.
Neither are effective methods when the books I work on contain 1000 plus images each - I just want to go from (what used to be in the old days of ±300dpi images) 89% to 91% (very easy with the arrow keys or an input device such as a Griffin PowerMate or a Palette dial). But with low res images this means going from 8.9 to 9.1% (for example) - and there is no way to do that with the keyboard arrows or any input device.
SOLUTION :
A modifier key to allow fractional increments - similar to holding SHIFT to increase the steps in multiples of 10 we need something such as ALT (for example) to increment in steps of one tenth.