diff --git a/models/common/enum/infrastructure.go b/models/common/enum/infrastructure.go
index 911af0e..4400f15 100644
--- a/models/common/enum/infrastructure.go
+++ b/models/common/enum/infrastructure.go
@@ -13,3 +13,8 @@ const (
 func (t InfrastructureType) String() string {
 	return [...]string{"DOCKER", "KUBERNETES", "SLURM", "HW", "CONDOR"}[t]
 }
+
+// get list of all infrastructure types
+func InfrastructureList() []InfrastructureType {
+	return []InfrastructureType{DOCKER, KUBERNETES, SLURM, HW, CONDOR}
+}
diff --git a/models/common/enum/schedule.go b/models/common/enum/schedule.go
index 95ab281..f27331a 100644
--- a/models/common/enum/schedule.go
+++ b/models/common/enum/schedule.go
@@ -36,3 +36,8 @@ func (d ScheduledType) String() string {
 func (d ScheduledType) EnumIndex() int {
 	return int(d)
 }
+
+// List
+func ScheduleList() []ScheduledType {
+	return []ScheduledType{DRAFT, SCHEDULED, STARTED, FAILURE, SUCCESS, FORGOTTEN, DELAYED, CANCELLED}
+}
diff --git a/models/common/enum/size.go b/models/common/enum/size.go
index 7a7e126..a6ef1f4 100644
--- a/models/common/enum/size.go
+++ b/models/common/enum/size.go
@@ -17,6 +17,15 @@ var argoType = [...]string{
 	"Ti",
 }
 
+// Size to string
+func (t StorageSize) String() string {
+	return [...]string{"GB", "MB", "KB", "TB"}[t]
+}
+
+func (t StorageSize) SizeList() []StorageSize {
+	return []StorageSize{GB, MB, KB, TB}
+}
+
 // New creates a new instance of the StorageResource struct
 func (dma StorageSize) ToArgo() string {
 	return argoType[dma]
@@ -39,3 +48,7 @@ const (
 func (t StorageType) String() string {
 	return [...]string{"FILE", "STREAM", "API", "DATABASE", "S3", "MEMORY", "HARDWARE"}[t]
 }
+
+func (t StorageType) TypeList() []StorageType {
+	return []StorageType{FILE, STREAM, API, DATABASE, S3, MEMORY, HARDWARE}
+}