Add support for custom rendering/export pandoc command line arguments
Is your feature request related to a problem? Please describe.
Apostrophe is a really nice pandoc
interface but it seems I always have to fall back to the command line when I finally decide to render my document. Whether I need a filter, a latex template or engine, or maybe use other extensions, I need the terminal. This issue can also be extended to the preview panel: I would like my filters/engine/extensions to work there too if possible.
Describe the solution you'd like
It could be a (GTK entry) text box, initialised with the options used by the program by default, for the renderer and the exporter. A reset button could also be provided to reinitialise the entries to their default values.
Alternatively, you could use YAML metadata for exactly the same purpose so that rendering/exporting options are tied to each project.
Describe alternatives you've considered
As far as I know, the terminal is my only alternative.
Additional context
In terms of interface, such boxes are probably not optimal for user experience but I only expect advanced users to modify this so that should be ok and provide all the versatility needed for little extra work.