diff --git a/Project.toml b/Project.toml
index 5d89578d..8bdb99b0 100644
--- a/Project.toml
+++ b/Project.toml
@@ -17,6 +17,7 @@ ManifoldsBase = "3362f125-f0bb-47a3-aa74-596ffd7ef2fb"
 Neo4j = "d2adbeaf-5838-5367-8a2f-e46d570981db"
 OrderedCollections = "bac558e1-5e72-5ebc-8fee-abe8a469f55d"
 Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
+ProgressMeter = "92933f4c-e287-5a05-a399-4b506db050ca"
 RecursiveArrayTools = "731186ca-8d62-57ce-b412-fbd966d074cd"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 Requires = "ae029012-a4dd-5104-9daa-d747884805df"
@@ -40,6 +41,7 @@ ManifoldsBase = "0.11, 0.12, 0.13"
 Neo4j = "2"
 OrderedCollections = "1.4"
 Pkg = "1.4, 1.5"
+ProgressMeter = "1"
 RecursiveArrayTools = "2"
 Reexport = "1"
 Requires = "1"
diff --git a/src/DataBlobs/services/AbstractDataEntries.jl b/src/DataBlobs/services/AbstractDataEntries.jl
index ccd639b6..a8111fb6 100644
--- a/src/DataBlobs/services/AbstractDataEntries.jl
+++ b/src/DataBlobs/services/AbstractDataEntries.jl
@@ -225,6 +225,18 @@ function mergeDataEntries!(
     end
 end
 
+function mergeDataEntries!(
+    dest::AbstractDFG,
+    src::AbstractDFG,
+    w...;
+    varList::AbstractVector = listVariables(dest) |> sortDFG
+)
+    @showprogress 1 "merging data entries" for vl in varList
+        mergeDataEntries!(dest, vl, src, vl, w...)
+    end
+    varList
+end
+
 """
     $SIGNATURES
 
diff --git a/src/DistributedFactorGraphs.jl b/src/DistributedFactorGraphs.jl
index 970ccb3f..19ae0c3b 100644
--- a/src/DistributedFactorGraphs.jl
+++ b/src/DistributedFactorGraphs.jl
@@ -30,6 +30,7 @@ using SparseArrays
 using UUIDs
 using Pkg
 using TensorCast
+using ProgressMeter
 
 # used for @defVariable
 import ManifoldsBase