I can submit (1) to our developers as a feature request. However, it would be useful to understand why you don't want to see any ORF's on the reverse strand. If you can justify the general utility of this feature then this would be helpful.
Regarding (2), the ORF Finder, this tool is just that, an ORF finder, finding ORF regions defined by start and stop codons. What you are asking for is really beyond the scope of this tool. Reliable and useful prediction of exon splicing, or non-standard viral splicing really requires heuristics such as that used GeneMarkS (http://exon.gatech.edu/GeneMark/). If you know what your splice site motif is, then you could use Annotate and Predict -> Search for motifs to identify and annotates regions on your sequence that are potential splice sites.