My query is related to the conditioning text on the source file. The previous writer was working on an older release. The product document is in two platforms; online and PDF. After the writer left, there was less time for transition. Now, if I am starting to work on the existing source files to update the content, I can see that the conditioning tags are now removed from the content, though the pod is showing all the tags created by previous writers to publish the online help and PDF. The pain is to tag every tag based on the published condition.
I don't know how to pull the tagged content so that I need not to apply tags again for the whole document.
If the tags are still visible in the Condition Tags panel, it is probably worth double checking that they were really removed and not just hidden. Open View > Show/Hide Conditional Text. Enable Show All and Show Condition Indicators and click Apply.
If they were really removed, the next thing I would do is look long and hard for a copy of the document with the tags still assigned. If that's not available, the only remaining option is to reassign them (and I assume reenter the content that was likely removed at the same time).
There are three keyboard shortcuts that you may find helpful:
Ctrl 4 allows you to assign one tag from a selection.
Ctrl 5 allows you to remove one tag from a selection.
Ctrl 6 removes all tags from a selection.
I find the shortcuts quicker than using the panel.