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Selection
Editing
Read-only cells (for example calculated
columns) can’t be edited or cleared.
Clipboard & fill
Copy/paste uses tab-separated values, so you can move data between HelloCSV and
spreadsheet apps like Excel or Google Sheets. Multi-select
enum cells are serialized using the
column’s
delimiter, so copying and pasting them round-trips correctly.
Undo & Redo
Each user operation is one step, so a mass action — pasting a block of cells,
filling down, clearing a range, or removing rows — is undone (or redone) in a
single press. Back and Forward buttons in the toolbar do the same thing. While
you’re editing a cell, Ctrl+Z falls back to the browser’s
native text undo inside that cell.
History is kept in memory only and is cleared on reload. Both the shortcuts and
the toolbar buttons are controlled by the
undoRedo
available action.