It's currently using a multiplicative inverse ([Why does GCC use multiplication by a strange number in implementing integer division?](https://stackoverflow.com/q/41183935)), so you have lots of space to work with for multiple instructions. But of course ARM only needs one, `add dst, src, src lsl #1` to do `src + src*2`. As far as how to actually use IDA's GUI to make that change, IDK.
– Peter CordesFeb 16 '21 at 06:55