feature request - mark short words (like "I") at the beginning of the sentence easier

[tiulimg]

When I'm trying to mark entities at expressions of intents, it's hard to mark short words as I, for example if they should be linked to the entity of the few next words.. Maybe a space or two before the sentence would allow me mark those words easily :)
Also, after entering several sentences and then creating new entites, maybe there could be an easier way to mark the same work in several sentences as the new entity, instead of marking it in every sentence of the entity.