diff --git a/crates/sdk/src/env/ext.rs b/crates/sdk/src/env/ext.rs
index f6e03e614..f8c98995d 100644
--- a/crates/sdk/src/env/ext.rs
+++ b/crates/sdk/src/env/ext.rs
@@ -28,7 +28,7 @@ pub enum ProposalAction {
         args: String,
 
         /// The amount of tokens to attach to the call.
-        deposit: u64,
+        deposit: u128,
 
         /// The maximum amount of gas to use for the call.
         gas: u64,
@@ -102,6 +102,51 @@ impl DraftProposal {
         self
     }
 
+    // Add an action to call an external function
+    #[must_use]
+    pub fn external_function_call(
+        mut self,
+        receiver_id: String,
+        method_name: String,
+        args: String,
+        deposit: u128,
+        gas: u64,
+    ) -> Self {
+        self.actions.push(ProposalAction::ExternalFunctionCall {
+            receiver_id: AccountId(receiver_id),
+            method_name,
+            args,
+            deposit,
+            gas,
+        });
+        self
+    }
+
+    /// Add an action to set a context value
+    #[must_use]
+    pub fn set_context_value(mut self, key: Box<[u8]>, value: Box<[u8]>) -> Self {
+        self.actions
+            .push(ProposalAction::SetContextValue { key, value });
+        self
+    }
+
+    /// Add an action to set number of approvals
+    #[must_use]
+    pub fn set_num_approvals(mut self, num_approvals: u32) -> Self {
+        self.actions
+            .push(ProposalAction::SetNumApprovals { num_approvals });
+        self
+    }
+
+    /// Add an action to set active proposals limit
+    #[must_use]
+    pub fn set_active_proposals_limit(mut self, active_proposals_limit: u32) -> Self {
+        self.actions.push(ProposalAction::SetActiveProposalsLimit {
+            active_proposals_limit,
+        });
+        self
+    }
+
     /// Finalise the proposal and send it to the blockchain.
     #[must_use]
     pub fn send(self) -> ProposalId {