Inconsistent shortcut assignment.

[Martin Heß]

Current:

• Next is "ALT + Right Arrow"
• Previous is "ALT + Left Arrow"
• Add Update is "CTRL + Return"
• Insert is "Insert"
• Remove is not assigned.

My suggenstion:

• CTRL + Right Arrow for previous
• CTRL + Left Arrow for next
• CTRL + Return for update and next
• CTRL + Ins for add new
• CTRL + Del for delete current