diff --git a/man/get_ssm_by_regions.Rd b/man/get_ssm_by_regions.Rd
index 4ac5b15..37ea4b4 100644
--- a/man/get_ssm_by_regions.Rd
+++ b/man/get_ssm_by_regions.Rd
@@ -52,6 +52,10 @@ This parameter can also accept an additional column with region names that will
 \item{verbose}{Set to TRUE to maximize the output to console. Default is TRUE.
 This parameter also dictates the verbosity of any helper function internally called inside the main function.}
 
+\item{engine}{String indicating which approach to use. Accepted values are
+"default" (legacy behaviour with for loop for each region) and
+"overlaps" (more efficient approach using overlaps).}
+
 \item{...}{Any additional parameters.}
 }
 \value{