What's the adjective for focussable? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs focalize, focus and focalise which may be used as adjectives within certain contexts.
focused
Directing all one's efforts towards achieving a particular goal.
“This would have killed two birds with one stone, combining a focusless programme looking for a theme with an ill-defined product looking for an identity.”