When naming a bookmark for use in all supported BIRT applications, make sure it meets the following guidelines:
Begins with a letter ([A-Za-z]) and may be followed by any number of letters, digits ([0-9]), hyphens ("‑"), underscores ("_"), colons (":"), and periods ("."). The letters in the name are case‑sensitive.
Is not enclosed in single or double quotation marks; does not include spaces or the percent symbol ("%").
Is representative of the report element being bookmarked, such as CrossTab, SummaryTable, Chart, and so on.
How to define a bookmark for a report table
1 Select and right‑click the target report element for which you want to define a bookmark, such as the report table, summary table, or cross tab element. Choose Bookmark.
2 Bookmark appears, as shown in Figure 12‑1. In Enter Bookmark, type a name for the bookmark. Choose OK.
Figure 12‑1 Creating a bookmark
How to define a bookmark for a report element in a section
1 Select and right‑click the chart or other report element in the section. Choose Bookmark.
2 Bookmark appears, as shown in Figure 12‑2. Select Generate Dynamic Bookmark Based on Section Value. Choose OK.
Figure 12‑2 Creating a section‑level bookmark
The report elements for which you define bookmarks in Report Studio can be displayed in Dashboards using a Reportlet gadget. A section‑level bookmark can be accessed in a report document file by Dashboards.
Modifying a bookmark
To edit an existing bookmark, select and right‑click the element containing the bookmark. Choose Bookmark. Then, for a table‑level bookmark, in Bookmark, edit the name of the element in Enter Bookmark.
Deleting a bookmark
To delete an existing bookmark at the report table level, in Bookmark, delete the name of the element in Enter Bookmark. If you are working with a bookmark at the report section level, deselect Generate Dynamic Bookmark Based on Section Value.
Begins with a letter ([A-Za-z]) and may be followed by any number of letters, digits ([0-9]), hyphens ("‑"), underscores ("_"), colons (":"), and periods ("."). The letters in the name are case‑sensitive. 
