Watermarking queries

Two queries regarding Watermarking in C1 v21

1) Is it possible to have the Watermark (either Image or Text), automatically adjust its size proportionate to the size of the image? (case in point: As a Wedding/ Events photographer I export 1000s of images per event, and the images vary dramatically in size & dimension due to cropping). It's not possible to manually adjust size of watermark for each image. 

2) How to enter 2 lines of text in the Text style of watermarking (case in point: Line 1 = "Catherine Black", Line 2 - 'Photography').

Thanks in advance.

Note: Lr easily provides options for both the above items - they are basic to any export options ('Recipe' sounds toooo fancy a name for such a simple action).