In years of using OO/LO (now @ 22.214.171.124), I have never been interested in the Gallery of multimedia objects. Now I have an application for it, and can't see how to execute a simple inclusion of a graphic without its attached descriptive text.
Specifically: in Writer I have a 4-page booklet/pamphlet in which the two facing inner pages have related content: The left side (page 2) has a list of summarized thoughts (each a few lines), two of which are expanded on the right side (page 3). To help the reader make the connection, it seems helpful in both cases to point from the condensed version to its expansion. The Gallery has a set of "Flow chart" graphics, including braces and brackets designed to serve the function of grouping a few lines and pointing to a conclusion. Unfortunately, all come with the description "Callout" which is inserted along with the graphic -- kind of like clip-art that includes a message "This is clip-art" (as part of the clip-art display). This can't be right, can it? - yet I have searched in vain (including the Help and Guides) for how to turn off that descriptive text. What am I missing?