regular expressions and ontology widget in mapper

[isthisthat]

Hello,
I do most of my ISA-tab-ization using the mapper. I was wondering whether it would be possible to:

1. bring the ontology lookup widget in the mapper as a third option (column, literal, ontology term)
2. allow for regular expression manipulation of column mappings (such that I could keep only the numeric part of a string, in the case I want to map, say, the number in "48 hr" to Timepoint, or transform a column containing [vehicle, low, med, high] to [yes, no] for Characteristics[Control] )

Thanks lot.