modifiable; changeable; updateable
Used especially in computing and technical contexts to describe settings, data, or parameters that can be altered. Also used more broadly for anything that can be changed.
This setting is changeable.
Please check the modifiable items.
変更 is the noun meaning 'change' or 'modification'; 変更可能 adds the sense of possibility, meaning 'can be changed'.
可能 is a suffix meaning 'possible'; 変更可能 is a compound meaning 'changeable'.
Compound of 変更 (change, modification) and 可能 (possible).