> For the complete documentation index, see [llms.txt](https://docs.hex-rays.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hex-rays.com/ida-9.3/ida-actions/opoffsetcs.md).

# OpOffsetCs

## Description

Convert the current operand to an offset in the current segment. If the cursor is on the first operand (the cursor is before ',') then the first operand will be affected; otherwise, all other operands will be affected. If a range is selected using the anchor, IDA will perform 'en masse' conversion. It will convert immediate operands of all instructions in the selected range to offsets. However, IDA will ask you first the lower and upper limits of immediate operand value. If the operand value is >= lower limit and <= upper limit then the operand will be converted to offset, otherwise, it will be left unmodified. If this command is applied to a structure member in the Local types window, then IDA will create an "automatic offset". An automatic offset is an offset with the base equal to 0xFFFFFFFF. This base value means that the actual value of the base will be calculated by IDA when a structure instance is created. To create offsets to structure members use the Offset (struct)... command (action `OpStructOffset`).


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