Flutter SelectableText no Select All option on iOS

I'm using SelectableText.rich() widget to allow user to copy the displayed text. On Android the default options in toolbar are Copy and Select All - I can also customize it. On iOS the default option appears to be only Copy and setting ToolbarOptions doesn't change that (only when I set copy to false, it disappears). My goal is to display Copy and Select All options on both Android and iOS. Am I missing something or is it some kind of a bug?

SelectableText.rich(
                          TextSpan(children: [
                            TextSpan(
                              text: "Name\n",
                              style:
                                  TextStyles.getDetailViewLabelStyle(context),
                            ),
                            TextSpan(
                              text: projectName,
                              style:
                                  TextStyles.getDetailViewContentStyle(context),
                            )
                          ]),
                          toolbarOptions:
                              const ToolbarOptions(copy: true, selectAll: true),
                        ),