For some time now, the new FamilySearch Indexing program has been released for Beta testing. You can see and use the Beta test at https://beta.familysearch.org/indexing/my-indexing. If you are involved in FamilySearch.org's Indexing, you need to be aware that the program will change very soon. The new website moves the entire Indexing program to the Internet. There will be no need to download a program to your own computer to participate in Indexing. It seems that no matter how many times this is announced, there are still people who are disoriented and surprised when the change comes.
There is already an extensive help center on FamilySearch.org for Indexing. Here is a screenshot:
You might also want to be aware of the latest version of the Guide. Here is a screenshot of the cover: