The "Set maxseq/maxdb" option (which is available from the gap4 Options menu) may be used to adjust the maximum size of the total consensus sequence contained within gap4. This includes concatenations of consensus sequences (with extra space for text headers) and the cutoff data at either end of each contig.
When opening an already assembled project, maxseq is automatically increased accordingly (if required), so "Set maxseq" only needs to be used when adding in more data, such as when using the sequence assembly algorithms.
The maxdb option controls the maximum combined number of readings and contigs allowed. Note that changing this does not take effect on the currently opened database so be sure to set it before opening your database.
Both these values can also be adjusted by using the
-maxdb command line arguments.See section Command Line Arguments.