auto output to folder of source file

[CtheG]

Hello, no bug report, but feature request:
when converting multiple files from multiple folders, it would be great to have the option to auto output to the source folder of the source files.

Why? Well, I "collected" to many GoPro files during the last couple of years and wouldn't need them as jpeg anymore.

e.g.
a) Instead of files, add a folder to convert it's containing *.extensionA to *.extensionB
b) Add multiple files and have a checkbox saying something like 'export files to their source file's folder'